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 51–65 of 65 patents

Patent #TitleCo-InventorsDate
5990027 Flexible graphite composite Joseph Paul Capp, Jeffrey John Gough 1999-11-23
5985452 Flexible graphite composite sheet and method 1999-11-16
5981072 Oxidation and corrosion resistant flexible graphite composite sheet and method David Paul Blain, Joe Tom McGlamery 1999-11-09
5976727 Electrically conductive seal for fuel cell elements Jeffery J. Gough 1999-11-02
5902762 Flexible graphite composite Joseph Paul Capp, Jeffrey John Gough 1999-05-11
5885728 Flexible graphite composite Joseph Paul Capp, Jeffrey John Gough 1999-03-23
5846459 Method of forming a flexible graphite sheet with decreased anisotropy 1998-12-08
5830809 Laminated reinforced flexible graphic article Ronald A. Howard 1998-11-03
5451064 Exhaust seal ring Thomas Weber 1995-09-19
5198063 Method and assembly for reinforcing flexible graphite and article Ronald A. Howard 1993-03-30
5192605 Epoxy resin bonded flexible graphite laminate and method Edwin Ohneth, Richard T. Lewis 1993-03-09
5149518 Ultra-thin pure flexible graphite calendered sheet and method of manufacture George Getz, Ronald Greinke, Ronald A. Howard 1992-09-22
4911972 Insulating composite gasket 1990-03-27
4895713 Intercalation of graphite Ronald Greinke, Edgar Beck 1990-01-23
4526834 Nuclear graphite John M. Criscione 1985-07-02