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

George Liebermann

Xerox: 45 patents #248 of 8,622Top 3%
UNUniroyal: 1 patents #69 of 180Top 40%
Overall (All Time): #63,473 of 4,157,543Top 2%
46 Patents All Time

Issued Patents All Time

Showing 26–46 of 46 patents

Patent #TitleCo-InventorsDate
5686218 Toner compositions with modified polyester resins Guerino G. Sacripante, Marko Saban, William JP Dale, Richard P. N. Veregin, Maria N. V. McDougall +1 more 1997-11-11
5563261 Hydroxygallium phthalocyanine photoconductive imaging members Barkev Keoshkerian, Cheng-Kuo Hsiao, James D. Mayo, Dasarao K. Murti, Sandra J. Gardner 1996-10-08
5548043 Processes for producing bimodal toner resins Marko Saban, Thomas B. McAneney 1996-08-20
5521306 Processes for the preparation of hydroxygallium phthalocyanine Richard A. Burt, Cheng-Kuo Hsiao, Dasarao K. Murti, Roger E. Gaynor, Barkev Keoshkerian +1 more 1996-05-28
5514505 Method for obtaining improved image contrast in migration imaging members William W. Limburg, Joseph Mammino, Clifford H. Griffiths, Michael M. Shahin, Shadi L. Malhotra +2 more 1996-05-07
5493016 Processes for the preparation of alkoxy-bridged metallophthalocyanine dimers Richard A. Burt, Gordon K. Hamer, Sandra J. Gardner, Carol A. Jennings, Katsumi Daimon +1 more 1996-02-20
5482811 Method of making hydroxygallium phthalocyanine type V photoconductive imaging members Barkev Keoshkerian, Cheng-Kuo Hsiao, James D. Mayo, Dasarao K. Murti, Sandra J. Gardner 1996-01-09
5466796 Alkoxy-bridged metallophthalocyanine dimers Richard A. Burt, Gordon K. Hamer, Sandra J. Gardner, Carol A. Jennings, Katsumi Daimon +1 more 1995-11-14
5456998 Photoconductive imaging members containing alkoxy-bridged metallophthalocyanine dimers Richard A. Burt, Barkev Keoshkerian, Cheng-Kuo Hsiao, Sandra J. Gardner, Dasarao K. Murti +3 more 1995-10-10
5419992 Aryl amine polycondensation polymers Walter Mychajlowskij, William W. Limburg, John F. Yanus, Dasarao K. Murti 1995-05-30
5405954 Metal phthalocyanines and processes for the preparation thereof Roger E. Gaynor, Ah-Mee Hor, Charles G. Allen 1995-04-11
5308363 Process for quaternary ammonium bisulfates H. Bruce Goodbrand, John L. Haack, John Abate 1994-05-03
5288836 Process for producing polycarbonates from nitrogen diol and aromatic diol haloformate. Walter Mychajlowskij, Dasarao K. Murti 1994-02-22
5283144 Purified photogenerating pigments Anthony T. Ward, Ah-Mee Hor, Giuseppa Baranyi, Donald J. Teney 1994-02-01
5225307 Processes for the preparation of photogenerating compositions Ah-Mee Hor, Rafik O. Loutfy, Donald J. Teney 1993-07-06
5200485 Process for obtaining copolymers with a very low content residual butadiene using and inert gas purge William JP Dale, Richard L. McQueen 1993-04-06
5177153 Suspension polymerization process for the preparation of polymeric material from gaseous and non-gaseous monomers William JP Dale, Nam S. Ro, Daniel M. McNeil, Stephan V. Drappel 1993-01-05
5100752 Processes for the preparation of phthalocyanines for electrophotography Cheng-Kuo Hsaio, Ah-Mee Hor, Giuseppa Baranyi, Terry L. Bluhm, James F. Duff +1 more 1992-03-31
4882254 Photoconductive imaging members with mixtures of photogenerator pigment compositions Rafik O. Loutfy, Ah-Mee Hor, Alan John Toth, Cheng-Kuo Hsiao, Kathleen M. Carmichael +1 more 1989-11-21
4771133 Phthalocyanine treatment process Ah-Mee Hor, Alan Edward John Toth 1988-09-13
4359579 Synthesis of intermediate for the manufacture of 5,6-dihydro-2-methyl-N-phenyl-1,4-oxathin-3-carboxamide Frederick M. M. Hager 1982-11-16