Robert A. Shaffer
20Patents
10h-index
31Co-inventors
75Inventor score
Filing activity: May 15, 1989 → Mar 31, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5983455A | Multi-faceted extension pole | Performing Operations; Transporting | 74 | Expired |
| USD338619S | Clam shell package | General | 39 | Expired |
| US6401290B1 | Paint brush with improved grip construction | Emerging Cross-Sectional Technologies | 35 | Expired |
| US6138313A | Paint brush with improved grip construction and method of manufacture thereof | Emerging Cross-Sectional Technologies | 25 | Expired |
| US8502120B2 | Insulating blocks and methods for installation in insulated conductor heaters | Emerging Cross-Sectional Technologies | 23 | Active |
| US5432972A | Pad-type corner painting tool | Human Necessities | 17 | Expired |
| US5673470A | Extended jacket end, double expansion hydroforming | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5836065A | Extended jacket end, double expansion hydroforming | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5584092A | Roller having slip-on cage for paint roller cover | Performing Operations; Transporting | 12 | Expired |
| US6101662A | Roller having slip-on cage for paint roller cover | Performing Operations; Transporting | 10 | Expired |
| USD359447S | Clam shell package | General | 10 | Expired |
| USD406465S | Set of grips for a roller frame handle | General | 10 | Expired |
| USD415899S | Portion of a paint brush handle | General | 10 | Expired |
| US5979009A | Roller having slip-on cage for paint roller cover | Performing Operations; Transporting | 10 | Expired |
| US5014384A | Pad attachment for paint roller assemblies | Performing Operations; Transporting | 7 | Expired |
| US9080409B2 | Integral splice for insulated conductors | Emerging Cross-Sectional Technologies | 1 | Active |
| US10119366B2 | Insulated conductors formed using a final reduction step after heat treating | Electricity | 0 | Active |
| US9661690B2 | Forming insulated conductors using a final reduction step after heat treating | Emerging Cross-Sectional Technologies | 0 | Active |
| US9226341B2 | Forming insulated conductors using a final reduction step after heat treating | Emerging Cross-Sectional Technologies | 0 | Active |
| US8859942B2 | Insulating blocks and methods for installation in insulated conductor heaters | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.