INTELLECTUAL PROPERTY RIGHTS (IPR) VOL 10, NO. 9, September 2004 Hydrogen–The fuel of the future Background of the invention
Hydrogen energy is environment-friendly. Because
Hydrogen is the new buzz word as oil companies
of the actual human ecology concerns, the exploitation
and car makers back the view that it will be the
of hydrogen as a universal fuel would be greatly
successor to oil in the coming decades. Hydrogen
acclaimed. A convenient source of hydrogen is a
appears to be the best pollution-free alternative.
reaction of aluminum with water to split the water
However, everyone is presently searching for an
molecules into hydrogen and oxygen. The hydrogen
efficient and cost effective method for producing
is released as a gas and oxygen combines with
hydrogen gas. A US patent (US 6,800,258) has been
aluminum to form aluminum oxide compounds. Aluminum
granted to inventors Reidar Erling Andersen and Jim
is the third most abundant element after oxygen and
Erling Andersen on October 5, 2004 for devising a
silicon in the earth’s crust, and constitutes approximately
simple and an economical hydrogen generator. The
8% by weight of the earth’s crust. Therefore, the
inventors have also been granted a process patent
reaction of aluminum with water to produce hydrogen
(US 6,638,493) for producing hydrogen on October
represents an interesting proposal to replace fossil
It is known that under certain conditions, aluminum
reacts with water to generate hydrogen and heat. Itis also known, however, that this type of reaction isnot sustainable at ambient temperature. It is believedthat a protective oxide layer forms on a metal surfacein contact with water at ambient temperature andhampers the reaction. Therefore, it has been acceptedby those skilled in the art that the use of aluminumin a reaction with water to generate heat and hydrogengas requires that the protective oxide layer is efficientlyand continuously removed, and that the reaction iskept at an elevated temperature.
Various other processes to produce hydrogen gas
have been tried by inventors, as reacting water withmagnesium, sodium, potassium, lithium, calcium,iron, zinc or steel.
A hydrogen generator for releasing water with a
measured change of aluminum particles and flake ofsodium hydroxide was reported in 1955 to producehydrogen and sodium aluminate. A generator havingbellows to raise or lower the level of water in responseto the pressure inside the generator was also reported
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A hydrogen generator wherein an aluminum or
A series of experiments were carried out to measure
aluminum alloy powder is reacted with water to
the volume of hydrogen gas produced in the reaction
generate hydrogen gas was reported in a US Patent
at room temperature of 21 degree C and an atmospheric
in 1992. An electric power source is used to explode
pressure of 758 mm Hg. It was noticed that a typical
an aluminum conductor and to disperse pieces of
reaction with less than 5 grams of loosely crumpled
molten aluminum into a mixture of water and aluminum
aluminum foil, is complete in less than 5 minutes.
powder and a heat exchanger is provided to extract
The results of these experiments are shown in
A hydrogen generation system wherein a coating
on reactive pellets is selectively removed to exposethe reactive material to water for producing hydrogen
Hydrogen Gas Production from Aluminum Foil
gas was reported in 1999. Aluminum and sodium
hydroxide were reacted with water to release hydrogen
Although these hydrogen production processes
deserve undeniable merits, it is believed that thecatalytic reaction of aluminum and water, using
sodium hydroxide as the catalyst, to release hydrogen
gas from water at room temperature has never beenanticipated or observed and disclosed by prior inventors.
Moreover, the existing hydrogen generators are believed
to be complicated and precarious to be operated by
untrained individuals. They are believed to be designedfor use by scientists and other professionals working
There still continues to be a need for a production
process and for an apparatus for generating hydrogengas and heat using a simple reaction which can be
The reaction yields a net maximum heat production
started at room temperature and carried out safely
during hydrogen generation of 195.6 kCal/mole. A
by ordinary persons not having a formal education in
further 204.9 kCal/mole will be released if the hydrogen
is burned with oxygen. 51% of the reaction energy
Present Invention
is used to form hydrogen gas and 49% goes into theproduction of heat.
The present invention relates to production of
hydrogen gas by reacting aluminum with water in the
FIG. 1 is a cross-sectional view of the hydrogen
presence of sodium hydroxide as a catalyst. The
generator with the fuel cartridge completely immersed
process is carried out at room temperature and
in water. The hydrogen generator 20 essentially
produces lot of heat and hydrogen gas of high purity.
comprises an expandable receptacle 22 having a
The invention also relates to using a simple hydrogen
closable fill opening 24 and a cleanout bung 30
generator which uses water and aluminum particles
through its bottom surface to facilitate the periodic
as fuel, and sodium hydroxide (NaOH) as a catalyst
removal of the reaction byproducts such as alumina.
and a surface conditioner to reduce the formation of
The receptacle is filled with water 32, to a level
oxide layers on the aluminum particles. The aluminum
of between half and three-quarter of its capacity. A
used in the reaction comprises aluminum foil, electrical
fuel cartridge 34 hanging from a vertical tube 36 is
wire, beverage cans and other similar aluminum
immersed into the water for causing a chemical
reaction to occur with water, and for producing heat
The catalyst is mixed with tap water in a proportion
and hydrogen gas. The fuel cartridge 34 is supported
of about 225 g. per liter of water. The sodium hydroxide
in a perforated basket 38 affixed to the vertical tube
content of the catalytic solution is preferably about
36. The vertical tube is connected to a gas handling
18% by weight. The catalyst is not chemically consumed
manifold 40 mounted above the receptacle 22, and
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has a series of holes 42 therein for admitting the
The fuel cartridge having a volume of about one
hydrogen gas into the gas handling manifold.
liter, that is about 500 ml of aluminum and about 500
An annular cap 44 is also provided for mounting
ml of paper filler material impregnated with sodium
over the upper central opening of the receptacle.
hydroxide in a dry form, immersed in 10 liters of water
Several clasps 46 are provided around the annular
is believed to be sufficient for producing heat and
cap 44 for securing the annular cap 44 in a sealing
maintaining a reaction for about two hours, in which
manner to the upper central opening 28. The upper
the active phase is about one hour, and the heating
central opening has a dimension to accommodate
and cooling phases are about one-half hour each. It
the insertion of the fuel cartridge and the basket
is believed that the amount of hydrogen gas produced
inside the receptacle. Upon the annular cap, there
during the active phase is sufficient for cooking food
is provided a bellows 48 having an interior region
communicating with the receptacle such that the
There are 11 claims out of which a few are
expansion and retraction of the bellows are relative
to the pressure inside the receptacle.
1. An apparatus for producing hydrogen gas, comprising;
The process of producing hydrogen comprises the
a receptacle having an upper portion and a central
steps of partly filling the expandable receptacle with
water and introducing the aluminum element andcatalyst in water. The expandable receptacle is
a tube extending vertically through said upper
partly sealed and the aluminum element reacts with
portion and into central inside portion for extracting
water. The expandable receptacle is expanded and
hydrogen gas from inside said receptacle, said
contracted in response to the pressure generated
tube having a first tube end outside said receptacle
due to the production of hydrogen causing the fuel
and a second tube end in said central inside
cartridge to emerge out or immerse into the water.
Due to pressure generated inside the receptacle
means mounted to said first tube end, to withdraw
the bellows expand upward which in turn causes fuel
hydrogen gas from said receptacle as said hydrogen
cartridge to be lifted toward an upper region of the
receptacle thereby causing the water level to fall in
a fuel element suspended to said second tube
the receptacle. The contact surface between water
and the fuel cartridge is thereby greatly reduced. The
a timer mechanism affixed to said upper portion
reaction is slowed down and the pressure and temperature
and comprising a cylindrical opening there through
inside the receptacle are consequently reduced. As
enclosing said tube, means for suspending said
pressure inside the receptacle is reduced, the bellows
tube and said fuel element to said upper portion,
collapse to re-immerse the fuel cartridge and to
and a seal affixed to said cylindrical opening; said
resume the active reaction phase. A timer mechanism
seal circling said tube and having a sliding engagement
50 is provided for further improving the safety of the
with said tube for a sealed longitudinal movement
hydrogen generator. The timer mechanism is used
of said tube through said cylindrical opening and
for lifting the fuel cartridge above the water after a
through said seal, and means for raising said tube
set time period, even when the bellows remains in
and said fuel opening and through said seal, and
means for raising said tube and said fuel element
A burner plate 60 is mounted over the gas handling
relative to said upper portion unconditionally of a
manifold which has conduit means communicating
with the burner plate. A series of orifices are provided
2. The apparatus as claimed in claim I, wherein said
in the burner plate to allow the burning of hydrogen
means for suspending said tube and said fuel
gas for cooking food for example in a similar manner
element comprises a bellows for raising and lowering
as is known of gas stoves. The gas handling manifold
said fuel element in said central portion in response
also has a selector valve 62 and a gas outlet fitting
to more or less pressure inside said receptacle,
64 communicating with the selector valve. The
and wherein a course of said bellows and a course
selector valve is operable for selectively directing the
of said linear actuator are coaxial and distinct
hydrogen gas to the burner plate or to the outlet
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from plant products. The major applicants are CSIR
Patents related to plants -
(55), M/S Avestha Gengraine Tech. (19), M/S JB
Indian scene
Chemicals and Pharmaceuticals Ltd (11), and Synit
In the last issues we had presented a trend of
patent applications filed in India in the area of
The maximum number of applications were filed
biotechnology and the patents involving the use of
in year 2001 (109) followed by 2002 (70) as shown
microorganisms. In the present issue, we present an
in figure 1. Applicants who have filed 6 or more
overview on patents related to another very important
Applicants No. of patents filed till December 2003
Organization on January 1, 1995. As a member,
India was then required to comply with the Trade
Related Aspects of the Intellectual Property Systems(TRIPS) agreement. Specifically, Article 27.3 (b) of
TRIPS requires member countries to protect plant
varieties either by patents, or by an effective suigeneris system of protection. Patent protection for
Tropical Botanic Garden & Res. Inst.
plant per se is not available in India under Section
3(j) of the Patents (Amendment) Act, 2002. [Section3(j): plants and animals in whole or part thereof other
than micro-organisms, but including seeds, varieties
and species and essentially biological processes for
production or propagation of plants and animals.
To comply with TRIPS agreement, India adopted
its sui generis system for Plant Variety Protection.
The Indian Parliament enacted the Protection ofPlant Varieties and Farmer’s Rights Act of 2001 in
order to spur the development of new varieties of
plants by providing protection for developers of new
plant varieties. But the protection available throughpatents is available for various plant related/derived
India is home to 45,000 plant species and 75,000
animal species. Patent applications related to rice
Plant related patent applications
and neem plant species dominated among otherspecies in the last ten years as shown in Figure 2,
followed by tea and mustard. Besides the species
listed in the figure, tomato, acacia, bamboo and pea
also were found to have place among the plant
related patents with two applications for each species.
In India 484 applications have been filed specifically
referring to plants since November 1994 till December2003. Of these 484 applications, 221 are conventionapplications and 265 are non convention applications. The convention applications (221) also include 132PCT applications. Applications related to agriculturalmachinery are not included in the analysis. Of the484 applications, 72 applications relates to plantextracts and 60 relate to various compositions derived
Visit us at www.indianpatents.org.in Contd on.5 Patents related to Patents related to . fungi and fungicides PCT applications, 125 are convention - Indian Scene Applicants till June
or to protect against possible disease.
of mint or Mentha claiming priority
related to fungi in the IPR bulletineight actually fall in the categorytotal of 206 applications related to
to its more favorable agronomictraits i.e. the profuse growth habitof ‘Neera’ and mint oil characteristics
Patents applications related to fungicides
India. New plant varieties can be protected
through registration under the ‘Protection
utilization except the plant per se. Visit us at www.indianpatents.org.in Apotex loses case based on ‘Doctrine comprises the steps of : of Equivalents’
at the time of the application. Apotexargued that it was not foreseeable
was readily known by chemists tobe equivalent to formic acid, it
organic solvent’ to the literally recited
courts denial of a preliminary injunction
limitation that “the highly polar organic
drafting of claims is clearly visibleVisit us at www.indianpatents.org.in Litigation Watch Patent World, September 2004
historic judgement in the Netherlands. Patent World, September 2004 Copyright world, September 2004
the rosiglitazone formulation patent.
explain the drug’s key ingredient.
copyrights, but that it was “accessing”
Patent World, September 2004 Copyright world, September 2004 Patent World, September 2004 Contd on.8 Visit us at www.indianpatents.org.in Patents for Opposition Contd from.7 Litigation Watch .
The following patent applications have been accepted by the Patent
users, allowing them to share files.
Office and published in the Gazette of India. These can now be opposed
by filing opposition applications within a period of four months from the
dates given. Six digit numbers allotted after acceptance by the Patent
Office are given before the applicant names and patent application
numbers given in brackets. Names of the branches of the Patent Office
are denoted in the application number, e.g. ‘Bom’ for Bombay branch.
An opposition application should be submitted at the appropriate office
where the concerned application was originally filed. PATENT APPLICANT
and since neither company maintainscontrol over index files there was
June 5, 2004 Copyright world, September 2004
192912. Institut Francais Du Petrole France
Federal Republic Of Germany (1396/MAS/95)
Device for mixing particulate material and
192920. Sree Chitra Tirunal Institute For
A process for treating plasticized polyvinyl
The Statesman,September 18, 2004 June 12, 2004
patent for the exterior of the cars.
Process for the production of grain oriented
electrical steel strip starting from thin
Business Standard,September
192929. Steel Authority Of India Ltd India
Visit us at www.indianpatents.org.in Domestic News
A process of producing a sustained release
trimetazidine dihydrochloride composition
Device for elastic support of the coupling
shaft of a central buffer coupling on arail car vehicle
Indian Express September 12, 2004
for applying granular material to the surface
5 methyl 7 rhamnoglucosyl isoflavonefrom the rhizomes of curcuma longa linn
June 19, 2004
Pneumatic booster with reduced hysteresis
192942. Mitsui Chemicals Inc Japan (1929/
National Herald September
Roller assembly for the transportation of
192947. The Chief Controller ResearchAnd Development Ministry Of Defence
A process for preparing the acyclic chiral
A data reproduction apparatus forreproducing data from the track of a
form a mixture suitable for environmental
NavBharat Times,September Contd on.10 Visit us at www.indianpatents.org.in Domestic News .
192956. Eaton Corporation. America (1699/
192957. John Francis Urch. Australia (709/
An air conditioner with improved mounting
multicolour printing with single impression
192961. Council Of Scientific And Industrial
over to the driver, it will automatically
192962. Council Of Scientific And Industrial
192963. Council Of Scientific And Industrial
192964. Council Of Scientific And Industrial
stereoselective preparation of r and senantiomers of 3 hydroxy 3
192965. Council Of Scientific And Industrial
2 pyridyl 2 8 bis trifluoromethyl 4 quinoline
192966. Council Of Scientific And Industrial
192967. Council Of Scientific And Industrial
An improved process for the isomenisation
192968. Council Of Scientific And Industrial
The Telegraph, September 12, 2004
192969. Council Of Scientific And Industrial
A process for the preparation of purified
192970. Council Of Scientific And Industrial
192974. Discovision Associates California
Apparatus for optical reading or recording
192977. Bharat Heavy Electricals Ltd.
192978. Pfizer Products Inc. America (109/
192979. Central Electronics Limited (1126/
Contd on.11 Visit us at www.indianpatents.org.in
192980. Council Of Scientific And Industrial
A process for isolation of peridininol from
Domestic News .
192981. Council Of Scientific And Industrial
The Economic Times, September 10, 2004
A bi directional driverless guided vehicle
novelty criteria in the Patents Act.
A method for generating a security design
An electrolytic cell for the electrowinning
The Economic Times, September 8, 2004
192992. Britannia Industries Limited India
192993. Istituto Biologico Chemioterapico
192994. Britannia Industries Limited India
of 5 4 2 n methyl n 2 pyridyl amino ethoxy
A process for preparing a heat stable oil
A process for producing a electrostatically
Business Standard,
A heating device for heating an advancing
September 9, 2004
193000. National Institute India (985/MAS/
Contd on.12 Visit us at www.indianpatents.org.in Domestic News .
A pump for the delivery of a fluid contained
A system for ultrasonic imaging of organs
Fuel injection pump for internal combustion
193011. Matsushita Electric Industrial Co
The Pioneer, September 24, 2004
Billet guiding unit of a continuous casting
combined market of about $4 billion.
Method of producing a casing in a borehole
Business Line September 14, 2004
base stations of different cellular systems
193029. Balu Ravikrishnan An Indian Citizen
A cartridge type heating device for heating
A method for producing a steel strip with
Business Line September 14, 2004 Visit us at www.indianpatents.org.in June 26, 2004 International News
193031.Minipack Torre S.P.A, Italy (2242/
A process for the preparation of an oxalic
1 9 3 0 3 5 . M e t a l l g e s e l l s c h a f t
Method of forming an article via injection
A process for the preparation of modified
A process for the preparation of a dosage
A plastic pre filled syringe and a method
193045.Institutfrancais Du Petrole France
Patent World, September 2004
site characteristic of fluid samples extracted
having correction for spherical aberration
193052.Toppan Printing Co Ltd Japan (1148/
Patent World, September 2004
base station from a network of existingbase stations and a method for adding
abase station to a network of existingbase stations
Contd on.14 Visit us at www.indianpatents.org.in International News .
An adjustment device of the circuit breaker
193059.Daewoo Electronics CorporationKorea (1701/MAS/95)
Electrical connector having terminals with
193063.Dr Partha Pratim Kanjilal India (440/
An instrument for continuous non invasive
Patent World, September 2004
Optical head of an optical disc recording/
193082.Switched Reluctance Drives Limited
A control circuit for switched reluctance
Patent World, September 2004 Contd on.15 Visit us at www.indianpatents.org.in
A terminal connector for an electric motor
International News .
A helmet in particular antiballistic helmet
A process for manufacture of a disinfectant
Copyright world, September 2004
tissues in endoscopic surgical procedures
193105.Institut Francais Du Petrole France
Copyright world, September 2004
A method of manufacturing a rotary cutting
die and a rotary cutting die made thereby
A method for the production of perovskite
Contd on.16 Visit us at www.indianpatents.org.in International News . Business Line,September 16, 2004
an expert group went into the issue. The Economic Times, September 7, 2004
2005 to complete its investigations. Copyright world, September 2004 Asian Age,September 8, 2004 The Economic Times, September 11, 2004
its 20th birthday just this year, foreign
The Times of India,September Copyright world, September 2004 Please send us questions and topics you would like to see in the coming issues Published by:Patent Facilitating Centre (PFC) Technology Information, Forecasting and Assessment Council (TIFAC) NEXT ISSUE
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