Robert A. St. John
20Patents
12h-index
36Co-inventors
81Inventor score
Filing activity: Nov 14, 1989 → Oct 8, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8087797B2 | Illumination device with detachable light sources | Emerging Cross-Sectional Technologies | 78 | Active |
| US6553717B2 | Retrofit power door assembly | Fixed Constructions | 51 | Expired |
| USD409446S | Container | General | 38 | Expired |
| US8047099B2 | Large strike face hammer | Performing Operations; Transporting | 32 | Active |
| US8024994B2 | Demolition utility tool | Fixed Constructions | 31 | Active |
| US5908242A | Stand mixer with locking connection between the mixing bowl and the bowl support | Emerging Cross-Sectional Technologies | 30 | Expired |
| US4979730A | Sheet drive system having an encoder apparatus | Performing Operations; Transporting | 30 | Expired |
| US6311588A | Self adjusting utility pliers | Performing Operations; Transporting | 22 | Expired |
| US8261634B2 | Large strike face hammer | Performing Operations; Transporting | 21 | Active |
| US5911505A | Stand mixer with shaft coupling | Performing Operations; Transporting | 16 | Expired |
| US5539856A | Electric coffeemaker with keep warm control responsive to the amount of coffee brewed | Human Necessities | 16 | Expired |
| US5996450A | Pliers (2) | Performing Operations; Transporting | 16 | Expired |
| US6079865A | Electric mixer | Emerging Cross-Sectional Technologies | 11 | Expired |
| US8499665B2 | Torsion control hammer grip | Performing Operations; Transporting | 9 | Active |
| US5957578A | Stand mixer with head locking mechanism | Human Necessities | 8 | Expired |
| US8104659B2 | Electromagnetic stapler with a manually adjustable depth adjuster | Physics | 8 | Active |
| US5666735A | Can opener with moving lid retainer | Performing Operations; Transporting | 7 | Expired |
| US6010030A | Metal container | Emerging Cross-Sectional Technologies | 5 | Expired |
| US11378004B2 | Length-adjustable connecting rod with reduced-mass outlet valve | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US8321981B2 | Hammer tacker | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.