CH

Colleen A. Helbig

Xerox: 9 patents #1,448 of 8,622Top 20%
📍 Webster, NY: #347 of 1,485 inventorsTop 25%
🗺 New York: #16,265 of 115,490 inventorsTop 15%
Overall (All Time): #584,341 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
7267917 Photoreceptor charge transport layer composition Yuhua Tong, Kenny-Tuan Dinh, Markus R. Silvestri, Michael E. Zak, John F. Yanus +9 more 2007-09-11
7192678 Photoreceptor charge transport layer composition Yuhua Tong, Kenny-Tuan Dinh, Markus R. Silvestri, Michael E. Zak, John F. Yanus +6 more 2007-03-20
7052813 Imaging member Yuhua Tong, Timothy J. Fuller, Kent J. Evans, John F. Yanus, Karen S. Garland +6 more 2006-05-30
7022445 Imaging member Yuhua Tong, Timothy J. Fuller, Kent J. Evans, John F. Yanus, Karen S. Garland +6 more 2006-04-04
7018756 Dual charge transport layer and photoconductive imaging member including the same Damodar M. Pai, Kent J. Evans, Kathleen M. Carmichael, John F. Yanus, Yuhua Tong +4 more 2006-03-28
6933089 Imaging member Anthony M. Horgan, Satchidanand Mishra, Robert C. U. Yu, Kathleen M. Carmichael, Kent J. Evans +4 more 2005-08-23
6780554 Imaging member Yuhua Tong, Timothy J. Fuller, Kent J. Evans, John F. Yanus, Karen S. Garland +4 more 2004-08-24
6645686 Electrophotographic imaging members Min-Hong Fu, Kent J. Evans, Kathleen M. Carmichael, June E. Schneider, David M. Skinner +1 more 2003-11-11
5686215 Multilayered electrophotographic imaging member John A. Bergfjord, Sr., Joseph S. Cappiello, Kathleen M. Carmichael, Vincent J. Cilento, Neil S. Patterson +2 more 1997-11-11