James Lawrence
19Patents
8h-index
9Co-inventors
65Inventor score
Filing activity: Feb 21, 1978 → Nov 15, 2006
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4243075A | Composite pipe | Performing Operations; Transporting | 25 | Expired |
| US5458040A | Teaching device for stringed instruments | Physics | 23 | Expired |
| US5599094A | Mounting system for light fixture | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4290836A | Method of making composite pipe having an integral bell end | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| USD339374S | Pedestal-mounted case for a pen plotter | General | 12 | Expired |
| US4754288A | Pen carousel, pen sensing and indexing | Physics | 11 | Expired |
| US4849771A | Plotter pen presence and type identification system | Physics | 9 | Expired |
| US7517119B2 | Externally adjustable directional luminaire | Mechanical Engineering; Lighting; Heating | 8 | Active |
| US4779104A | Pen plotter pen type identification system | Physics | 6 | Expired |
| US4567491A | Pinch roller assembly | Physics | 5 | Expired |
| US4540994A | Releasable pen block guide | Physics | 3 | Expired |
| US4240470A | Composite pipe having an integral bell end | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US5159848A | Self-adjusting motor mount for drive motors of a pen plotter | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4777727A | Plotter pen up/down control system | Physics | 3 | Expired |
| US4539574A | Pen capping mechanism | Physics | 2 | Expired |
| US5682039A | Media position sensing system having a plurality of apertures in the media edge margin | Physics | 2 | Expired |
| US4879567A | Carriage coupling device system for pen plotter | Physics | 2 | Expired |
| US5461402A | Pinch roller for pen plotters including platen bridge to prevent media snag | Performing Operations; Transporting | 0 | Expired |
| USRE32775E | Pinch roller assembly | General | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.