David A. Johnson
48Patents
19h-index
28Co-inventors
81Inventor score
Filing activity: Apr 26, 1982 → Mar 6, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4484404A | Spare magazine holder | Mechanical Engineering; Lighting; Heating | 64 | Expired |
| USD926124S1 | Jump starter with flashlight | General | 51 | Active |
| US4619062A | Safety device for firearms using removable magazines | Mechanical Engineering; Lighting; Heating | 49 | Expired |
| US4628627A | Protective retainer for a magazine | Mechanical Engineering; Lighting; Heating | 47 | Expired |
| USD926123S1 | Jump starter with flashlight | General | 43 | Active |
| US4709496A | Safety device including chamber probe | Mechanical Engineering; Lighting; Heating | 40 | Expired |
| US7562482B1 | Spare magazine carrier with independent latch mechanism | Mechanical Engineering; Lighting; Heating | 39 | Active |
| US4571872A | Device for attaching a front sling-receiving loop to a weapon | Emerging Cross-Sectional Technologies | 38 | Expired |
| US4528765A | Externally visible safety device for firearms | Mechanical Engineering; Lighting; Heating | 37 | Expired |
| US4505012A | Sling swivel | Emerging Cross-Sectional Technologies | 30 | Expired |
| US5636465A | Spare magazine carrier | Mechanical Engineering; Lighting; Heating | 27 | Expired |
| US4429479A | Magazine latch release mechanism | Mechanical Engineering; Lighting; Heating | 25 | Expired |
| US7059502B2 | Sling for a shoulder weapon | Emerging Cross-Sectional Technologies | 24 | Expired |
| US4823998A | Sling for carrying shoulder weapon in a horizontal orientation | Emerging Cross-Sectional Technologies | 24 | Expired |
| US5217549A | Pneumatic safety tire | Emerging Cross-Sectional Technologies | 23 | Expired |
| US4555051A | Sling for shoulder weapon | Emerging Cross-Sectional Technologies | 22 | Expired |
| US8898946B1 | Magazine adapter | Mechanical Engineering; Lighting; Heating | 21 | Active |
| US5448910A | Portable tire uniformity test machine | Physics | 21 | Expired |
| US4516515A | Boat plug reminder and method for use thereof | Performing Operations; Transporting | 20 | Expired |
| US7069624B2 | Attachment of a sling | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4603498A | Externally visible safety device for grenade launcher | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US6154673A | Multilingual defibrillator | Human Necessities | 17 | Expired |
| US6722253B2 | Extended lever for a firearm | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US5499752A | Shoulder bow carrier | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4483089A | Holder for pistol loader and cartridges | Emerging Cross-Sectional Technologies | 12 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.