Robert D. Door has been granted 8 US patents. The first was granted in 1988 and the most recent in March 1995. Robert D. Door ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Robert D. Door in West Columbia, TX, US.
Patents per Year Patents granted per year, 1988 to 1995 Bar chart with a peak of 2 patents in 1992. peak 2 1988: 1 patents 1988 1989: 1 patents 1989 1991: 1 patents 1991 1992: 2 patents 1992 1994: 2 patents 1994 1995: 1 patents 1995
Issued Patents All Time
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Showing 1–8 of 8 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
5395705 Electrochemical cell having an electrode containing a carbon fiber paper coated with catalytic metal particles Glenn A. Eisman 1995-03-07
$6,770,000
5314760 Electrochemical cell electrode Yu-Min Tsou , Glenn A. Eisman 1994-05-24
$46,379,000
5302269 Ion exchange membrane/electrode assembly having increased efficiency in proton exchange processes Glenn A. Eisman 1994-04-12
$4,169,000
5171644 Electrochemical cell electrode Yu-Min Tsou , Glenn A. Eisman 1992-12-15
$6,858,000
5164060 Ion exchange membrane having increased efficiency in proton exchange processes Glenn A. Eisman 1992-11-17
$5,610,000
4992126 Method for making a current collector bonded to a solid polymer membrane — 1991-02-12
$8,604,000
4889577 Method for making an improved supported membrane/electrode structure combination wherein catalytically active particles are coated onto the membrane James W. McMichael 1989-12-26
$7,943,000
4752370 Supported membrane/electrode structure combination wherein catalytically active particles are coated onto the membrane James W. McMichael 1988-06-21
$10,822,000