Thomas C. Campbell
19Patents
10h-index
38Co-inventors
72Inventor score
Filing activity: Sep 17, 1973 → May 1, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US3990834A | Cooled igniter | Emerging Cross-Sectional Technologies | 61 | Expired |
| US5321949A | Staged fuel delivery system with secondary distribution valve | Mechanical Engineering; Lighting; Heating | 36 | Expired |
| US4216125A | Detergent compositions with silane-zeolite silicate builder | Chemistry; Metallurgy | 33 | Expired |
| US5220786A | Thermally protected venturi for combustor dome | Mechanical Engineering; Lighting; Heating | 30 | Expired |
| US3978662A | Cooling ring construction for combustion chambers | Emerging Cross-Sectional Technologies | 29 | Expired |
| US5274995A | Apparatus and method for atomizing water in a combustor dome assembly | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US4214435A | Method for reducing nitrous oxide emissions from a gas turbine engine | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US3990232A | Combustor dome assembly having improved cooling means | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US7845909B2 | Assembly for providing flexure to blade system | Performing Operations; Transporting | 13 | Active |
| US4243545A | Detergent compositions with silane-zeolite silicate builder | Chemistry; Metallurgy | 13 | Expired |
| US8181755B2 | Dual spring rate damper | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US8360727B2 | Yoke and bearing fitting assembly for rotors | Performing Operations; Transporting | 9 | Active |
| US7828525B2 | Soft in-plane tiltrotor hub | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US8287237B2 | Step-over blade-pitch control system | Performing Operations; Transporting | 7 | Active |
| US8857581B2 | Dual spring rate damper | Mechanical Engineering; Lighting; Heating | 6 | Active |
| US5375439A | Elastic membrane doors for industrial washer-extractor cylinders | Textiles; Paper | 3 | Expired |
| US7867096B2 | Joint for tiltrotor hubs | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US8047466B2 | Yoke with notched arm roots | Performing Operations; Transporting | 2 | Active |
| US5335523A | Removable heat exchanger for industrial laundry machines | Textiles; Paper | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.