USPatentGranted
B2Method for the production of metal-carbon composite powders
Granted 11 Jan 2005 · 4 office actions
Current assignee: NANOCHEM RESEARCH LLC · originally Cabot Corporation
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Inventors: James Caruso, Toivo T. Kodas, Daniel J. Skamser, Quint H. Powell +1 · Examiner: Mary Lynn Theisen · AU 1732 · TC 1700
Application
10/209,343
filed 31 Jul 2002
Publication
US 20020192368
published 19 Dec 2002
Patent· this page
US 6,841,099
granted 11 Jan 2005
21
Claims
5 independent
61
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transactions
2022
20-year term
term adjustment not held
none
Litigation
checked
8
Classifications
1
Citations
1 cites · 0 cited by
Life of the patent
11 dated events⤢ drag to zoom
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Claims
21 · 5 independent · depth 321 granted claims
›1.independentA method for the production of metal-carbon composite particles comprising the steps of:na) forming a liquid precursor including at least a first meta…+5
›2.↳ 1A method as recited in claim 1, wherein said carbon is in the form of suspended carbon particles having an average size of not greater than about 0.1 …d2
›3.↳ 1A method as recited in claim 1, wherein said carbon is in the form of agglomerates of smaller primary particles.d2
›4.↳ 1A method as recited in claim 1, wherein said heating step comprises heating the dried precursor for not greater than about 4 seconds.d2
›5.↳ 1A method as recited in claim 1, wherein said heating step comprises heating the dried precursor for not greater than 2 seconds.d2
›6.↳ 1A method as recited in claim 1, wherein said composite particles have an average particle size of not greater than about 20 μm.d2
›7.independentA method for making metal-carbon composite particles comprising a metal alloy phase dispersed on a support phase, wherein said particles are at least …+3
›8.↳ 7A method as recited in claim 7, wherein said metal alloy phase comprises platinum.d2
›9.↳ 7A method as recited in claim 7, wherein said support phase comprises carbon.d2
›10.↳ 7A method as recited in claim 7, wherein said composite particles are formed by a spray process.d2
›11.independentA method for making metal-carbon composite particles comprising at least a first metal phase and a second metal phase, wherein said particles are at l…+2
›12.↳ 11A method as recited in claim 11, wherein at least one of said first and second metal phases comprises platinum metal.d2
›13.↳ 11A method as recited in claim 11, wherein said particles are formed by a spray process.d2
›14.independentA method for producing metal-carbon composite particles, comprising the steps of:na) providing a liquid precursor comprising a platinum metal precurso…+4
›15.↳ 14A method as recited in claim 14, wherein said heating step comprises heating for less than about 10 seconds.d2
›16.↳ 14A method as recited in claim 14, wherein said particulate carbon precursor comprises particulate carbon having an average size of from about 5to about…d2
›17.↳ 14A method as recited in claim 14, wherein said aerosol has as droplet loading of at least about 0.04 ml/l.d2
›18.↳ 14A method as recited in claim 14, wherein said aerosol has a droplet loading of at least about 0.083 ml/l.d2
›19.independentA method for producing metal-carbon composite particles, comprising the steps of:na) providing a flowable liquid feed comprising at least a first meta…+2
›20.↳ 19A method as recited in claim 19, wherein at least one of said metal precursors comprises metal particulates.d2+1
›21.↳ 20A method as recited in claim 20, wherein at least one of said metal precursors is a platinum precursor.d3
Classifications
8 codesUSPC · US Patent Classification
264/14264/13264/575/34175/340264/34675/33175/351
Claim changes
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Pendency
2.5 y
895 days filing → grant
Office actions
2
non-final + final
Responses
3
1 RCE
Examiner
Mary Lynn Theisen
art unit 1732 · TC 1700
Law firm
Citations: 1 back · 0 forward
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1 priority documents›Priority documents — 1
| Type | Document | Date |
|---|---|---|
| related publication | US 20020192368 A1 | 19 Dec 2002 |
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