Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Robert Angelo Mercuri — 65 Patents

GRGrafttech: 17 patents #1 of 22Top 5%
UTUcar Carbon Technology: 16 patents #2 of 62Top 4%
ACAdvanced Energy Technology Co.: 12 patents #1 of 28Top 4%
GHGraftech International Holdings: 7 patents #13 of 101Top 15%
UCUnion Carbide: 3 patents #288 of 1,402Top 25%
UGUcar Graph-Tech: 3 patents #1 of 6Top 20%
DSDirecta Plus S.P.A.: 2 patents #6 of 12Top 50%
ATAdvanced Energy Technologies: 1 patents #9 of 24Top 40%
UCUcar Carbon Company: 1 patents #18 of 32Top 60%
Seven Hills, OH: #3 of 133 inventorsTop 3%
Ohio: #435 of 73,341 inventorsTop 1%
Overall (All Time): #33,967 of 4,157,543Top 1%
65 Patents All Time

Issued Patents All Time

Showing 26–50 of 65 patents

Patent #TitleCo-InventorsDate
6605379 Hydrophobic fuel cell electrode Thomas Weber 2003-08-12
6592982 Flexible graphite capacitor element Paul Calarco, Thomas Weber 2003-07-15
6582846 Method for preparing fuel cell component substrate of flexible graphite material having improved catalytic properties Robert Anderson Reynolds, III, Ronald Greinke 2003-06-24
6548156 Fluid permeable flexible graphite article with enhanced electrical and thermal conductivity Thomas Weber, Michael Lee Warddrip 2003-04-15
6528199 Graphite article useful as an electrode for an electrochemical fuel cell Thomas Weber, Michael Lee Warddrip 2003-03-04
6521369 Flooding-reducing fuel cell electrode Daniel W. Krassowski 2003-02-18
6517964 Catalyst support material for fuel cell 2003-02-11
6506484 Fluid permeable flexible graphite article with enhanced electrical and thermal conductivity Thomas Weber, Michael Lee Warddrip 2003-01-14
6503652 Fuel cell assembly method with selective catalyst loading Robert Anderson Reynolds, III 2003-01-07
6479182 Fuel cell electrode assembly with selective catalyst loading 2002-11-12
6468686 Fluid permeable flexible graphite fuel cell electrode with enhanced electrical and thermal conductivity Thomas Weber, Michael Lee Warddrip 2002-10-22
6433067 Formable flexible graphite sealing composites Michael Lee Warddrip, Thomas Weber 2002-08-13
6432336 Flexible graphite article and method of manufacture Joseph Paul Capp, Michael Lee Warddrip, Thomas Weber 2002-08-13
6413663 Fluid permeable flexible graphite fuel cell electrode 2002-07-02
6413601 Thermal insulating device David Paul Blain 2002-07-02
6413671 Flexible graphite article and fuel cell electrode with enhanced electrical and thermal conductivity Thomas Weber, Michael Lee Warddrip 2002-07-02
6410128 Flexible graphite capacitor element Paul Calarco, Thomas Weber 2002-06-25
6387462 Thermal insulating device for high temperature reactors and furnaces which utilize highly active chemical gases David Paul Blain 2002-05-14
6254993 Flexible graphite sheet with decreased anisotropy 2001-07-03
6143218 Method of forming a flexible graphite composite sheet 2000-11-07
6087034 Flexible graphite composite 2000-07-11
6074585 Flexible graphite composite Joseph Paul Capp, Jeffrey John Gough 2000-06-13
6060189 Electrically conductive seal for fuel cell elements Jeffrey John Gough 2000-05-09
6037074 Flexible graphite composite for use in the form of a fuel cell flow field plate Jeffrey John Gough 2000-03-14
6017633 Flexible graphite composite sheet and method 2000-01-25