David A. Johnson
55Patents
18h-index
33Co-inventors
84Inventor score
Filing activity: Jul 6, 1982 → Oct 1, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5326374A | Body-implantable device for controlling the size of a fluid passageway | Emerging Cross-Sectional Technologies | 128 | Expired |
| US5578060A | Physical therapy apparatus having an interactive interface, and method of configuring same | Human Necessities | 78 | Expired |
| US4472461A | Method for producing perforations in an adhesive-coated porous web | Performing Operations; Transporting | 56 | Expired |
| US4824307A | Apparatus for vertically stacking battery plates | Emerging Cross-Sectional Technologies | 56 | Expired |
| US4822234A | Plate feed apparatus | Performing Operations; Transporting | 50 | Expired |
| US5069629A | Electrical interconnect contact system | Electricity | 42 | Expired |
| US5360348A | Integrated circuit device test socket | Electricity | 39 | Expired |
| US4581087A | Method of making a thermoplastic adhesive-coated tape | Emerging Cross-Sectional Technologies | 38 | Expired |
| US4758126A | Plate feed apparatus | Emerging Cross-Sectional Technologies | 36 | Expired |
| US5645433A | Contacting system for electrical devices | Physics | 36 | Expired |
| US5207584A | Electrical interconnect contact system | Electricity | 33 | Expired |
| US5634801A | Electrical interconnect contact system | Electricity | 30 | Expired |
| US4737116A | Impedance matching block | Electricity | 27 | Expired |
| US5639247A | Contacting system for electrical devices | Physics | 23 | Expired |
| US5967848A | Apparatus for providing controlled impedance in an electrical contact | Emerging Cross-Sectional Technologies | 22 | Expired |
| US6203329A | Impedance controlled interconnection device | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4835464A | Decoupling apparatus for use with integrated circuit tester | Emerging Cross-Sectional Technologies | 20 | Expired |
| US5336094A | Apparatus for interconnecting electrical contacts | Electricity | 19 | Expired |
| US5749738A | Electrical interconnect contact system | Electricity | 16 | Expired |
| US5102287A | Plate handling apparatus | Performing Operations; Transporting | 15 | Expired |
| US5388996A | Electrical interconnect contact system | Electricity | 15 | Expired |
| US5121174A | Gate-to-ohmic metal contact scheme for III-V devices | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5144410A | Ohmic contact for III-V semiconductor devices | Electricity | 14 | Expired |
| US5129643A | Apparatus for stacking pasted battery plates | Emerging Cross-Sectional Technologies | 12 | Expired |
| USD749526S1 | Articulating contact pin | General | 11 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.