Bruce V. Johnson
20Patents
9h-index
16Co-inventors
72Inventor score
Filing activity: Feb 10, 1977 → May 26, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5854779A | Optical disc reader for reading multiple levels of pits on an optical disc | Physics | 38 | Expired |
| US5256352A | Air-liquid mixer | Mechanical Engineering; Lighting; Heating | 33 | Expired |
| USD549064S1 | Hammer | General | 24 | Expired |
| US6068445A | Cooling system for the leading-edge region of a hollow gas-turbine blade | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| USD549066S1 | Hammer | General | 14 | Expired |
| US4116383A | Method and apparatus for mixing fluid | Electricity | 11 | Expired |
| US4260336A | Coolant flow control apparatus for rotating heat exchangers with supercritical fluids | Emerging Cross-Sectional Technologies | 11 | Expired |
| USD551529S1 | Hammer | General | 10 | Expired |
| US6056508A | Cooling system for the trailing edge region of a hollow gas turbine blade | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US5919031A | Coolable blade | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US10272578B2 | Hair clipper bladeset with blade guide | Performing Operations; Transporting | 5 | Active |
| US5916413A | Welding device having a heating device for heating thermoplastic fiber composite material tapes | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4559628A | Shear layer control in a free-vortex aerodynamic window | Electricity | 3 | Expired |
| US9889867B2 | Railroad switch machine | Performing Operations; Transporting | 3 | Active |
| US11534932B2 | Flip-comb mechanism for hair clipper | Performing Operations; Transporting | 2 | Active |
| USD962544S1 | Hair clipper blade setting tool | General | 2 | Active |
| US6909460B2 | Median-based dark level acquisition for a frame rate clamp | Electricity | 1 | Expired |
| US8411184B2 | Column output circuits for image sensors | Electricity | 1 | Active |
| US12239099B2 | Pet nail grinder | Human Necessities | 0 | Active |
| US11752647B2 | Hair clipper bladeset with combined drive elements | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.