Robert D. Davis
31Patents
12h-index
25Co-inventors
81Inventor score
Filing activity: Jun 24, 1974 → Jul 8, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4395865A | Self propelled lawn mower | Emerging Cross-Sectional Technologies | 76 | Expired |
| US5644903A | Steering control for zero turn radius mower | Performing Operations; Transporting | 65 | Expired |
| US5927055A | Pivoting mower deck mechanism | Emerging Cross-Sectional Technologies | 53 | Expired |
| US6372252B1 | Guaifenesin sustained release formulation and tablets | Human Necessities | 49 | Expired |
| US6955821B2 | Sustained release formulations of guaifenesin and additional drug ingredients | Human Necessities | 35 | Expired |
| US4429515A | Self propelled lawn mower | Emerging Cross-Sectional Technologies | 31 | Expired |
| US6675561B2 | Round baler with semi-automatically sequenced operating cycles and selectively variable point of operator intervention | Human Necessities | 30 | Expired |
| US5060681A | Dental flossing device | Human Necessities | 30 | Expired |
| US4135244A | Method and apparatus for programming and reducing runout in rotating shaft vibration signal detection | Physics | 26 | Expired |
| US4134303A | Method and circuit for providing electrical runout reduction in rotating shaft vibration detection systems | Physics | 20 | Expired |
| US4607406A | Combination automobile folding tool | Performing Operations; Transporting | 19 | Expired |
| US7692399B2 | DC motor control | Electricity | 14 | Active |
| US6622455B2 | Round baler with semi-automatically sequenced operating cycles and selectively variable point of operator intervention | Human Necessities | 11 | Expired |
| US5494006A | Rotating debris screen for internal combustion engines | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US3939715A | Method and apparatus for developing balance information for rotating equipments and assemblies | Physics | 11 | Expired |
| US6674260B1 | DC motor control | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4190024A | Variable chamber diesel engine | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| USD376806S | Compound miter saw | General | 8 | Expired |
| USD299569S | Portable spin dryer | General | 8 | Expired |
| US4196851A | Scented sachet tablet | Emerging Cross-Sectional Technologies | 7 | Expired |
| USD381667S | Compound miter saw | General | 5 | Expired |
| US7838032B2 | Sustained release of guaifenesin | Human Necessities | 5 | Expired |
| US6682167B2 | Reducing printhead servicing noise | Performing Operations; Transporting | 4 | Expired |
| US6942406B2 | Inner paper guide for media shape control in a printer | Performing Operations; Transporting | 4 | Expired |
| US6312178A | Inner paper guide for media shape control in a printer | Performing Operations; Transporting | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.