Keith A. Roberts
20Patents
9h-index
20Co-inventors
75Inventor score
Filing activity: Sep 30, 1996 → Feb 20, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6702880B2 | Inlet silencer/filter for an oxygen concentrator | Performing Operations; Transporting | 52 | Expired |
| US5792711A | Antiwetting composition for fabrics and fibrous substrates | Emerging Cross-Sectional Technologies | 34 | Expired |
| US5765963A | Pavement maintenance vehicle | Fixed Constructions | 23 | Expired |
| US6585808B2 | Membrane air dryer with integral diffuser and method of manufacture thereof | Emerging Cross-Sectional Technologies | 21 | Expired |
| US9447890B2 | Back pressure regulator with floating seal support | Mechanical Engineering; Lighting; Heating | 18 | Active |
| USD872871S1 | Sanitizing chamber for continuous positive air pressure equipment | General | 17 | Active |
| US6123076A | Hydrophobic barrier for filters and filter media | Performing Operations; Transporting | 15 | Expired |
| US6010458A | Spirometer filter media and device | Performing Operations; Transporting | 14 | Expired |
| US8414550B2 | System and method to vent gas from a body cavity | Human Necessities | 12 | Active |
| US8608715B2 | System and method to vent gas from a body cavity | Human Necessities | 6 | Active |
| USD884918S1 | Breathing equipment sanitizing chamber | General | 5 | Active |
| US8307825B1 | Membrane oxygen humidifier | Human Necessities | 4 | Active |
| US6786537B2 | One piece plastic water management system for sunroof | Performing Operations; Transporting | 4 | Expired |
| US10601823B2 | Machine to-machine and machine to cloud end-to-end authentication and security | Electricity | 3 | Active |
| US9114225B1 | Membrane oxygen humidifier | Human Necessities | 2 | Active |
| US8585646B2 | System and method to vent gas from a body cavity | Human Necessities | 2 | Active |
| US11477194B2 | Machine-to-machine and machine to cloud end-to-end authentication and security | Electricity | 0 | Active |
| US9821095B2 | System and method to vent gas from a body cavity | Human Necessities | 0 | Active |
| US11147895B1 | CPAP equipment sanitizing system | Human Necessities | 0 | Active |
| US8307826B1 | Method of providing breathable humidified oxygen gas to a patient | Human Necessities | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.