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USPTO Patent Rankings Data through Sept 30, 2025
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Scott D. Chamberlain — 12 Patents

Xerox: 12 patents #1,122 of 8,622Top 15%
Macedon, NY: #21 of 195 inventorsTop 15%
New York: #12,360 of 115,490 inventorsTop 15%
Overall (All Time): #428,445 of 4,157,543Top 15%
12 Patents All Time

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDate
5942365 Developer compositions and imaging processes George A. Gibson, Thomas R. Pickering, John W. Spiewak, Jacques C. Bertrand, Roger N. Ciccarelli +1 more 1999-08-24
5866292 Liquid developer compositions with copolymers David H. Pan, Christopher M. Knapp, John W. Spiewak, George A. Gibson, Frank J. Bonsignore 1999-02-02
5783349 Liquid developer compositions John W. Spiewak, Mary A. Machonkin, David H. Pan, Christopher M. Knapp 1998-07-21
5723244 Charging neutralization processes Christopher M. Knapp, David H. Pan 1998-03-03
5714297 Liquid developer compositions with rhodamine John W. Spiewak, David H. Pan, George A. Gibson, Christopher M. Knapp, Roger N. Ciccarelli 1998-02-03
5688624 Liquid developer compositions with copolymers David H. Pan, Christopher M. Knapp, John W. Spiewak, George A. Gibson, Frank J. Bonsignore 1997-11-18
5679492 Developer compositions Edward B. Caruthers, Jr., Constance J. Thornton, George A. Gibson 1997-10-21
5672456 Liquid developer compositions David H. Pan, John W. Spiewak 1997-09-30
5672457 Liquid developers and methods thereof George A. Gibson 1997-09-30
5627002 Liquid developer compositions with cyclodextrins David H. Pan, George A. Gibson, John W. Spiewak, Frank J. Bonsignore 1997-05-06
5563015 Liquid developer compositions Frank J. Bonsignore, James R. Larson 1996-10-08
5525450 Liquid developer compositions with multiple block copolymers John W. Spiewak, James R. Larson 1996-06-11