Robert C. Walker
26Patents
8h-index
12Co-inventors
72Inventor score
Filing activity: Jun 8, 1979 → Jan 13, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US9468695B2 | Ultraviolet light source and methods | Human Necessities | 29 | Active |
| US4241843A | Lined metal tank with heat shield and method of making same | Emerging Cross-Sectional Technologies | 27 | Expired |
| US10363327B2 | Luminaire with white light LEDs and UV LEDs for lighting and disinfection | Physics | 18 | Active |
| US8884258B1 | Ultraviolet light source and methods | Human Necessities | 18 | Active |
| US4313400A | Lined metal tank with heat shield, indirect fired water heater and method of making same | Emerging Cross-Sectional Technologies | 17 | Expired |
| US8816300B1 | Portable UV-LED water purification system | Emerging Cross-Sectional Technologies | 14 | Active |
| US10166309B2 | White light LEDs and UV LEDs in same luminaire for lighting and disinfection | Physics | 13 | Active |
| US4825805A | Device and method for protecting water sprinklers while painting | Human Necessities | 8 | Expired |
| US9943618B2 | Ultraviolet light source and methods | Physics | 7 | Active |
| US4747366A | Device for protecting water sprinklers while painting | Performing Operations; Transporting | 6 | Expired |
| US8083936B1 | Reducing waste water in reverse osmosis residential drinking water systems | Chemistry; Metallurgy | 6 | Active |
| US10265430B2 | Ultraviolet light source and methods | Physics | 5 | Active |
| US9669121B2 | Ultraviolet light source and methods | Physics | 4 | Active |
| US10570028B2 | Device for UV-LED liquid monitoring and treatment | Emerging Cross-Sectional Technologies | 3 | Active |
| US10959651B1 | Human gas sensing glucose monitoring and ketone fluctuation detection device | Human Necessities | 3 | Active |
| US9627579B2 | Semiconductor device and a method of making a semiconductor device | Emerging Cross-Sectional Technologies | 2 | Active |
| US9219204B1 | Semiconductor device and a method of making a semiconductor device | Emerging Cross-Sectional Technologies | 1 | Active |
| US10669166B2 | UV-LED liquid monitoring and treatment apparatus and method | Emerging Cross-Sectional Technologies | 1 | Active |
| US9566357B2 | Ultraviolet light source and methods | Physics | 1 | Active |
| US10214431B2 | System and method for UV-LED liquid monitoring and disinfection | Emerging Cross-Sectional Technologies | 1 | Active |
| US10227241B2 | UV-LED liquid monitoring and treatment apparatus and method | Emerging Cross-Sectional Technologies | 0 | Active |
| US10224443B2 | Semiconductor device and a method of making a semiconductor device | Emerging Cross-Sectional Technologies | 0 | Active |
| US9793433B2 | UV light emitting devices and systems and methods for production | Electricity | 0 | Active |
| US10561156B2 | Device for UV-LED liquid monitoring and treatment | Emerging Cross-Sectional Technologies | 0 | Active |
| US10439099B2 | UV light emitting devices and systems and methods for production | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.