Christopher John Stevens
31Patents
12h-index
22Co-inventors
81Inventor score
Filing activity: Nov 27, 1979 → May 10, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5276678A | Distributed switching and telephone conferencing system | Electricity | 154 | Expired |
| US8205344B2 | Safety razor having pivotable blade unit | Performing Operations; Transporting | 83 | Active |
| US8938885B2 | Razor handle with a rotatable portion | Performing Operations; Transporting | 54 | Active |
| US5393368A | Correction tape dispenser | Emerging Cross-Sectional Technologies | 37 | Expired |
| US6112796A | Tape dispenser | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4278502A | Chemical recovery apparatus | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5820728A | Tape Dispenser | Emerging Cross-Sectional Technologies | 18 | Expired |
| US6135660A | Marking instruments | Performing Operations; Transporting | 17 | Expired |
| US5420860A | Volume control for digital communication system | Electricity | 17 | Expired |
| US5714035A | Correction tape dispenser | Emerging Cross-Sectional Technologies | 16 | Expired |
| US9643327B2 | Wet shaving razor | Performing Operations; Transporting | 16 | Active |
| US6231257A | Marking instruments | Performing Operations; Transporting | 16 | Expired |
| US9164033B2 | Investigation of physical properties of an object | Physics | 11 | Active |
| US6568450B1 | Tape dispenser | Emerging Cross-Sectional Technologies | 8 | Expired |
| US9192361B2 | Fecal microbiome transplant material preparation method and apparatus | Human Necessities | 4 | Active |
| US8179325B2 | Planar tripolar antenna | Electricity | 4 | Active |
| US9592422B2 | Foot positioning device | Human Necessities | 2 | Active |
| US7065877B2 | Undercutter for a shaving apparatus | Emerging Cross-Sectional Technologies | 2 | Expired |
| US8760166B2 | Resonant assembly, system and method for identification of a buried asset | Physics | 1 | Active |
| US10931252B2 | Magnetoinductive waveguide | Electricity | 1 | Active |
| US7818884B2 | Shaving apparatus | Emerging Cross-Sectional Technologies | 1 | Expired |
| US6935027B2 | Undercutter for a shaving apparatus | Emerging Cross-Sectional Technologies | 1 | Expired |
| US9385785B2 | Common communications device | Emerging Cross-Sectional Technologies | 1 | Active |
| US8482451B2 | Resonant reflector assembly and method | Physics | 1 | Active |
| US12107434B2 | Magnetoinductive wave control | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.