James R. Hall
30Patents
12h-index
22Co-inventors
81Inventor score
Filing activity: Nov 4, 1974 → Jul 17, 1998
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4742556A | Character recognition method | Physics | 34 | Expired |
| US4548431A | Tool joint with internal/external make-up shoulders | Fixed Constructions | 31 | Expired |
| US4206958A | Electrical conductor having an integral electrical contact | Emerging Cross-Sectional Technologies | 24 | Expired |
| US5129471A | Earth boring bit with protected seal means | Mechanical Engineering; Lighting; Heating | 21 | Expired |
| US5245242A | Efficiency driver system for piezoelectrics | Electricity | 19 | Expired |
| US4109192A | Low power reactive drive circuit for capacitive loads | Electricity | 19 | Expired |
| US4061967A | Support system for rotatable detecting element | Physics | 19 | Expired |
| US4775327A | Connector with automatic protection cap | Electricity | 16 | Expired |
| US4486932A | Process for making a replacement muffler | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5062299A | Apparatus and method for detecting inhomogeneities in semi-plastic substances through ultrasound | Physics | 13 | Expired |
| US4156767A | Ethylene, C.sub.3-16 monoolefin polymer containing 0.02%-0.6% by weight vinyl norbornene bound in the polymer having improved cold flow | Chemistry; Metallurgy | 13 | Expired |
| US5233129A | Seismic network bay frame | Electricity | 12 | Expired |
| US6105303A | Fishing lure | Human Necessities | 11 | Expired |
| US4392703A | Electrical conductor having an integral electrical contact | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5987897A | Ice bank system | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US4871328A | Hermetically sealing connector and method of use thereof | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5063473A | Modular electrical service distribution system | Electricity | 9 | Expired |
| US3942129A | Controlled gain amplifier | Electricity | 8 | Expired |
| US4846515A | Golf ball retrieving apparatus | Human Necessities | 8 | Expired |
| US4516659A | Replacement muffler and process for making same | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US5022865A | Hermetically sealing connector and method of use thereof | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5728911A | Process for the preparation of low molecular weight copolymers of ethylene with at least one other 1-alkene | Chemistry; Metallurgy | 7 | Expired |
| US4694729A | Electromagnetic launcher assembly | Electricity | 7 | Expired |
| US3950708A | Gain-controlled amplifier | Electricity | 6 | Expired |
| US4210316A | Drill string shock absorber with improved pin type torque transmission means | Fixed Constructions | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.