Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
JC

John R. Campbell — 58 Patents

GE: 54 patents #217 of 36,430Top 1%
SBSabic Innovative Plastics B.V.: 2 patents #286 of 817Top 40%
MGMomentive Performance Materials Gmbh: 1 patents #331 of 627Top 55%
Saratoga Springs, NY: #8 of 363 inventorsTop 3%
New York: #1,461 of 115,490 inventorsTop 2%
Overall (All Time): #42,078 of 4,157,543Top 2%
58 Patents All Time

Issued Patents All Time

Showing 26–50 of 58 patents

Patent #TitleCo-InventorsDate
5770652 Dispersive reactive extrusion of polymer gels William D. Richards, Greg R. Bradtke, Robert H. Wildi, Linda McAdam Gemmell, Jack A. Hill +4 more 1998-06-23
5707439 Layered minerals and compositions comprising the same Tohru Takekoshi, Farid Fouad Khouri, Therese C. Jordan, Kevin H. Dai 1998-01-13
5691411 High performance polymer compositions Farid Fouad Khouri 1997-11-25
5530052 Layered minerals and compositions comprising the same Tohru Takekoshi, Farid Fouad Khouri, Therese C. Jordan, Kevin H. Dai 1996-06-25
5380796 Functionalized olefin polymers and polyphenylene ether compositions containing them James R. Presley 1995-01-10
RE34799 Reactive graft polymers 1994-11-22
5322893 Thermoplastic elastomers and method for making Andra J. Moffett, Marinus E. J. Dekkers, Timothy J. Shea 1994-06-21
5262511 Branched aromatic carbonate polymer Joseph John Caringi, Luca P. Fontana 1993-11-16
5153290 Polymers of ethylenically unsaturated cyclic ortho esters Farid Fouad Khouri, Robert Halley, Timothy J. Shea 1992-10-06
5132361 Copolymers prepared from polymers of ethylenically polymerizable cyclic ortho esters Timothy J. Shea, Andra J. Moffett, Marinus E. J. Dekkers, Farid Fouad Khouri 1992-07-21
5124410 Reactive graft polymers 1992-06-23
5068286 Copolymers from nucleophilic olefin polymers and epoxytriazine-capped polyphenylene ethers Timothy J. Shea, Stanley Y. Hobbs, Sterling B. Brown 1991-11-26
5039742 Polyphenylene ether-polyester molding compositions useful under severe molding conditions Sterling B. Brown, Timothy J. Shea 1991-08-13
5010143 Method for preparing block polyphenylene ether-polycarbonates Thomas L. Evans, Carol B. Wasserman, Timothy J. Shea 1991-04-23
4980415 Compositions comprising polyphenylene ethers and reactive graft polymers 1990-12-25
4973628 Method for preparing block polyphenylene ether-polycarbonates Timothy J. Shea 1990-11-27
4902753 Polyphenylene ether-polyester molding compositions useful under severe molding conditions Sterling B. Brown, Timothy J. Shea 1990-02-20
4840982 Polymer blends containing ionomeric elastomers Robert E. Williams, Sterling B. Brown, Paul M. Conroy, Robert Florence 1989-06-20
4814392 Silicone-polyarylene ether block copolymers, and method for making Timothy J. Shea, Dwain M. White, Laura A. Socha 1989-03-21
4777221 Polyphenylene ether-polycarbonate copolymers and method of preparation Timothy J. Shea 1988-10-11
4775591 Ionomer compositions and method for their preparation Philip C. Johnson 1988-10-04
4608430 Polycarbonate exhibiting improved heat resistance from diphenol containing disubstituted phenylene radical Victor Mark 1986-08-26
4533722 Interfacial polycondensation polycarbonate process with quaternary phosphonium amino halide catalyst James W. Thackeray 1985-08-06
4525567 Ionically cross-linked siloxane polymers Robert E. Williams 1985-06-25
4523002 Ionically cross-linked siloxane polymers Robert E. Williams 1985-06-11