John D. Collins
31Patents
10h-index
14Co-inventors
72Inventor score
Filing activity: Jul 22, 1974 → Aug 17, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4566010A | Processing arrangement for pulse compression radar | Physics | 83 | Expired |
| US4620192A | Continuous wave radar with ranging capability | Physics | 55 | Expired |
| US4005417A | Frequency spectrum analyzer | Physics | 32 | Expired |
| US4333080A | Signal processor | Physics | 30 | Expired |
| US4993880A | Trench-box panel | Fixed Constructions | 27 | Expired |
| US4909461A | Stubout bar | Fixed Constructions | 17 | Expired |
| US5178217A | Gas foam for improved recovery from gas condensate reservoirs | Chemistry; Metallurgy | 17 | Expired |
| US4174346A | Process for preparing organotin compounds | Chemistry; Metallurgy | 16 | Expired |
| US4618863A | Continuous wave radar with ranging capability | Physics | 14 | Expired |
| US6352224B1 | Stationary clamping device for flexible conduit | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US4292252A | Process for preparing organotin esters | Chemistry; Metallurgy | 7 | Expired |
| US5053119A | Ore flotation | Performing Operations; Transporting | 6 | Expired |
| US3972908A | Organotin compounds | Chemistry; Metallurgy | 4 | Expired |
| US4231949A | Process for preparing organotin esters | Chemistry; Metallurgy | 4 | Expired |
| US8074584B2 | Water heater stand and assembly thereof | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US5052871A | Connected screw threads | Fixed Constructions | 3 | Expired |
| US4242683A | Signal processor | Physics | 3 | Expired |
| US3933750A | Novel stabilized polymer compositions | Chemistry; Metallurgy | 3 | Expired |
| US3955143A | Single sideband generator of bi-level signals | Physics | 3 | Expired |
| US3962295A | Novel diorganotin derivatives of .alpha., .omega.-dimercaptans and method for preparing same | Chemistry; Metallurgy | 2 | Expired |
| US3987005A | Organotin compounds | Chemistry; Metallurgy | 2 | Expired |
| US3933744A | Esters and mixtures thereof with organotin compounds useful as polymer stabilizers | Chemistry; Metallurgy | 2 | Expired |
| US4219813A | Signal processor | Physics | 2 | Expired |
| US5925559A | Phagemids and process of preparation | Chemistry; Metallurgy | 2 | Expired |
| US3933743A | Organotin thermal stabilizers for PVC resins | Chemistry; Metallurgy | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.