John R. Laing
13Patents
6h-index
24Co-inventors
66Inventor score
Filing activity: Jul 25, 1983 → Mar 23, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4937157A | Toner and developer compositions with charge enhancing additives | Physics | 44 | Expired |
| US4494863A | Cleaning apparatus for a charge retentive surface | Physics | 24 | Expired |
| US4904762A | Toner compositions with charge enhancing additives | Physics | 21 | Expired |
| US4963455A | Developer compositions with suspension polymerized styrene butadiene resins | Physics | 11 | Expired |
| US4678734A | Process for developer compositions | Physics | 8 | Expired |
| US5569572A | Processes for controlling developer aging | Physics | 7 | Expired |
| US5888691A | Process for producing toner | Physics | 6 | Expired |
| US5045423A | Toner and developer compositions with charge enhancing additives | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5787329A | Organic coated development electrodes and methods thereof | Physics | 5 | Expired |
| US5722008A | Copy machine with physical mixing of distinct toner to form a custom colored toner | Physics | 3 | Expired |
| US5761587A | Coated development electrodes and methods thereof | Physics | 3 | Expired |
| US5627003A | Cleaning processes | Physics | 2 | Expired |
| US7354689B2 | Process for producing toner | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.