Robert E. Campbell
22Patents
14h-index
19Co-inventors
78Inventor score
Filing activity: Oct 21, 1974 → Nov 3, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5342313A | Fluid pump for a flexible, variable geometry reservoir | Human Necessities | 181 | Expired |
| US5232439A | Method for pumping fluid from a flexible, variable geometry reservoir | Emerging Cross-Sectional Technologies | 133 | Expired |
| US5423759A | Valve system and method for control of an infusion pump | Emerging Cross-Sectional Technologies | 103 | Expired |
| US5411482A | Valve system and method for control of an infusion pump | Emerging Cross-Sectional Technologies | 97 | Expired |
| US4947065A | Stator assembly for an alternating current generator | Electricity | 62 | Expired |
| US7698545B1 | Computer configuration chronology generator | Physics | 57 | Active |
| US3972315A | Dual action internal combustion engine ignition system | Mechanical Engineering; Lighting; Heating | 32 | Expired |
| US5472420A | Valve system and method for control of an infusion pump | Emerging Cross-Sectional Technologies | 27 | Expired |
| US6684585B2 | Method and apparatus for providing a visual indication of the tension applied to a tendon of a post-tension system | Emerging Cross-Sectional Technologies | 26 | Expired |
| US4096735A | Engine detonation sensor with double shielded case | Physics | 18 | Expired |
| US7000497B1 | Selectively positionable gearshift and method | Emerging Cross-Sectional Technologies | 16 | Expired |
| US8196996B1 | Vehicle drag reducer | Emerging Cross-Sectional Technologies | 14 | Active |
| US6539678B1 | Vehicle service bay | Fixed Constructions | 14 | Expired |
| US7546224B2 | Method for assessing the integrity of a structure | Performing Operations; Transporting | 14 | Expired |
| US7940532B2 | Power conversion device frame packaging apparatus and methods | Electricity | 11 | Active |
| US4431124A | Apparatus and method for guiding metal strip | Performing Operations; Transporting | 10 | Expired |
| US4097164A | Terminals on wire rope and strand | Emerging Cross-Sectional Technologies | 7 | Expired |
| US8108836B1 | System and method for defining software management | Physics | 6 | Active |
| US4648661A | Empty and load valve for a railroad car brake system | Performing Operations; Transporting | 5 | Expired |
| US9038051B1 | Selecting patch solutions based on availability of information regarding patches previously installed on user system | Physics | 5 | Active |
| US3988618A | Electrical angle delay circuit | Electricity | 2 | Expired |
| US9213535B1 | Pre-computing computer software patch solutions | Physics | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.