Robert W. Hedrick
20Patents
6h-index
42Co-inventors
69Inventor score
Filing activity: Jul 12, 1982 → Oct 13, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5436099A | Photoreceptor with low surface energy overcoat | Physics | 21 | Expired |
| US4514128A | Signature stacker including improved intercept means | Emerging Cross-Sectional Technologies | 18 | Expired |
| US7799495B2 | Metal oxide overcoated photoconductors | Physics | 16 | Active |
| US5633046A | Multiple dip coating method | Physics | 12 | Expired |
| US8507161B2 | Phenolic phosphite containing photoconductors | Physics | 7 | Active |
| US5895529A | Chuck apparatus for substrate shaping | Performing Operations; Transporting | 6 | Expired |
| US5356108A | Weighted trophy base | Emerging Cross-Sectional Technologies | 3 | Expired |
| US8623578B2 | Tetraaryl polycarbonate containing photoconductors | Physics | 3 | Active |
| US8785091B1 | Polyarylatecarbonate containing photoconductors | Physics | 2 | Active |
| US7923188B2 | Imaging member | Physics | 2 | Active |
| US8883384B2 | Binderless overcoat layer | Physics | 1 | Active |
| US7947418B1 | Sulfonamide phenolic hole blocking photoconductor | Physics | 1 | Active |
| US5514421A | Airfoil air ring | Performing Operations; Transporting | 1 | Expired |
| US7838187B2 | Imaging member | Physics | 0 | Active |
| US7670735B2 | Phosphoric acid ester containing photoconductors | Physics | 0 | Active |
| US8617648B2 | Imaging members and method of treating an imaging member | Physics | 0 | Active |
| US8409773B2 | Epoxy carboxyl resin mixture hole blocking layer photoconductors | Physics | 0 | Active |
| US9851647B1 | Polycarbonate containing photoconductors | Physics | 0 | Active |
| US9052619B2 | Cross-linked overcoat layer | Physics | 0 | Active |
| US8658337B2 | Imaging member layers | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.