Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Robert W. Hedrick — 20 Patents

Xerox: 18 patents #783 of 8,622Top 10%
AVAvnet: 1 patents #4 of 19Top 25%
Elm Grove, WI: #8 of 140 inventorsTop 6%
Wisconsin: #1,951 of 40,088 inventorsTop 5%
Overall (All Time): #214,803 of 4,157,543Top 6%
20 Patents All Time
Robert W. Hedrick has been granted 20 US patents while listed as an inventor at Xerox. The first was granted in 1985 and the most recent in December 2017. Robert W. Hedrick ranks #214,803 of 4,157,543 US inventors in our database (top 5.2%). Patent records list Robert W. Hedrick in Elm Grove, WI, US.

Issued Patents All Time

Showing 1–20 of 20 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9851647 Polycarbonate containing photoconductors Jin Wu, Kenny-Tuan Dinh, Lanhui Zhang, Jimmy E. Kelly, Mark S. Thomas +5 more 2017-12-26 $3,169,000
9052619 Cross-linked overcoat layer Jin Wu, Kenny-Tuan Dinh, Qi Ying Li, Lin Ma, Than Sorn +2 more 2015-06-09 $3,043,000
8883384 Binderless overcoat layer Kenny-Tuan Dinh, Edward C. Savage, Marc J. Livecchi, Linda L. Ferrarese, Sherri A. Toates +1 more 2014-11-11 $3,761,000
8785091 Polyarylatecarbonate containing photoconductors Jin Wu, Kenny-Tuan Dinh, Terry L. Street, Linda L. Ferrarese, Than Sorn +3 more 2014-07-22 $4,351,000
8658337 Imaging member layers Kenny-Tuan Dinh, Jin Wu, Linda L. Ferrarese 2014-02-25 $3,923,000
8623578 Tetraaryl polycarbonate containing photoconductors Jin Wu, Kenny-Tuan Dinh, Than Sorn, Linda L. Ferrarese, Marc J. Livecchi +3 more 2014-01-07 $4,476,000
8617648 Imaging members and method of treating an imaging member Jin Wu, Liang-Bih Lin, Rachel Brown 2013-12-31 $2,718,000
8507161 Phenolic phosphite containing photoconductors Jin Wu, Kenny-Tuan Dinh, Terry L. Street, Linda L. Ferrarese, Brian P. Gilmartin 2013-08-13 $2,113,000
8409773 Epoxy carboxyl resin mixture hole blocking layer photoconductors Jin Wu, Marc J. Livecchi, John J. Wilbert 2013-04-02 $2,609,000
7947418 Sulfonamide phenolic hole blocking photoconductor Jin Wu, Marc J. Livecchi, Emily K. Redman 2011-05-24 $4,585,000
7923188 Imaging member Liang-Bih Lin, Daniel V. Levy, Jin Wu, Linda L. Ferrarese 2011-04-12 $3,848,000
7838187 Imaging member Liang-Bih Lin, Daniel V. Levy, Jin Wu, Gary A. Batt, M. John Hinckel 2010-11-23 $3,883,000
7799495 Metal oxide overcoated photoconductors Jin Wu, Kenny-Tuan Dinh, John F. Yanus, Adal Tecleab, June Shujun Peng +5 more 2010-09-21 $3,847,000
7670735 Phosphoric acid ester containing photoconductors Jin Wu, Daniel V. Levy, Liang-Bih Lin 2010-03-02 $3,138,000
5895529 Chuck apparatus for substrate shaping Geoffrey M. T. Foley, Henry T. Mastalski, Ernest F. Matyi, Yonn K. Rasmussen, Mark S. Thomas +3 more 1999-04-20 $41,291,000
5633046 Multiple dip coating method Mark C. Petropoulos, Geoffrey M. T. Foley, Richard H. Nealey 1997-05-27 $8,215,000
5514421 Airfoil air ring Stanley J. Pietrzykowski, Jr., Edward C. Williams, William H. Gilbert 1996-05-07 $4,214,000
5436099 Photoreceptor with low surface energy overcoat Richard L. Schank, James Esser 1995-07-25 $2,940,000
5356108 Weighted trophy base Peter M. Stagl 1994-10-18 $8,879,000
4514128 Signature stacker including improved intercept means 1985-04-30