John A. Nelson
27Patents
15h-index
51Co-inventors
84Inventor score
Filing activity: Sep 25, 1975 → Dec 20, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4611238A | Integrated circuit package incorporating low-stress omnidirectional heat sink | Electricity | 86 | Expired |
| US7096946B2 | Rotating blast liner | Fixed Constructions | 71 | Expired |
| US4132856A | Process of forming a plastic encapsulated molded film carrier CML package and the package formed thereby | Emerging Cross-Sectional Technologies | 55 | Expired |
| US4996848A | Method and apparatus for recovering refrigerants from home refrigeration systems | Mechanical Engineering; Lighting; Heating | 31 | Expired |
| US4479556A | Subterranean well casing perforating gun | Fixed Constructions | 30 | Expired |
| US4817718A | Hydraulically activated firing head for well perforating guns | Fixed Constructions | 27 | Expired |
| US6843480B2 | Seal ring for well completion tools | Fixed Constructions | 26 | Expired |
| US4880056A | Hydraulically activated firing head for well perforating guns | Fixed Constructions | 24 | Expired |
| US5628262A | Interseeding apparatus and method | Human Necessities | 23 | Expired |
| US5293756A | Method and apparatus for recovering refrigerants from home refrigeration systems | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US4576236A | Perforation and isolation apparatus | Fixed Constructions | 19 | Expired |
| US4460628A | Catalyzed wet oxidation process and catalyst useful therein | Chemistry; Metallurgy | 18 | Expired |
| US4661886A | Magnetically sealed multichip integrated circuit package | Electricity | 16 | Expired |
| US4548258A | Method and means for inhibiting corrosion in a heat pipe | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US3999827A | Electrical connector for semiconductor device package | Electricity | 16 | Expired |
| US5392610A | Method and apparatus for recovering refrigerants from home refrigeration systems | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US4610312A | Redundant firing mechanism for a well perforating gun | Fixed Constructions | 12 | Expired |
| US6901972B1 | Capsule filling device and method of operation | Human Necessities | 12 | Expired |
| US4543700A | Method of detachably securing an explosive charge container in a hollow carrier for a perforating device | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4012034A | Multiple modular sorter system | Performing Operations; Transporting | 5 | Expired |
| US4944367A | Injection lubricator with plural outlets | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| USD247243S | Sorter controller | General | 2 | Expired |
| US7243711B2 | Efficient heat exchanger and engine using same | Emerging Cross-Sectional Technologies | 2 | Expired |
| US4012035A | Sorter control system | Performing Operations; Transporting | 1 | Expired |
| US4933530A | Method for repairing a refrigeration sealed system | Mechanical Engineering; Lighting; Heating | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.