William E. Stumpf
48Patents
27h-index
28Co-inventors
85Inventor score
Filing activity: Jan 13, 1976 → Aug 24, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6035901A | Woven fabric membrane for a seating surface | Emerging Cross-Sectional Technologies | 254 | Expired |
| US6059368A | Office chair | Emerging Cross-Sectional Technologies | 249 | Expired |
| US6386634B1 | Office chair | Emerging Cross-Sectional Technologies | 224 | Expired |
| US5038539A | Work space management system | Fixed Constructions | 212 | Expired |
| US6588842B2 | Backrest | Emerging Cross-Sectional Technologies | 196 | Expired |
| US6722741B2 | Seating structure having a backrest with a bowed section | Emerging Cross-Sectional Technologies | 175 | Expired |
| US6125521A | Process for making an office chair | Emerging Cross-Sectional Technologies | 170 | Expired |
| US5772282A | Tilt control mechanism for a chair | Emerging Cross-Sectional Technologies | 168 | Expired |
| US6733080B2 | Seating structure having a backrest with a flexible membrane and a moveable armrest | Emerging Cross-Sectional Technologies | 162 | Expired |
| US4529247A | One-piece shell chair | Emerging Cross-Sectional Technologies | 162 | Expired |
| US6966604B2 | Chair with a linkage assembly | Emerging Cross-Sectional Technologies | 159 | Expired |
| US4876835A | Work space management system | Fixed Constructions | 150 | Expired |
| US6702390B2 | Support assembly for a seating structure | Emerging Cross-Sectional Technologies | 145 | Expired |
| US6726286B2 | Seating structure having a fabric with a weave pattern | Emerging Cross-Sectional Technologies | 139 | Expired |
| US7594700B2 | Contoured seating structure | Emerging Cross-Sectional Technologies | 123 | Expired |
| USD346279S | Chair | General | 118 | Expired |
| USD289120S | Chair shell | General | 102 | Expired |
| US5765804A | Pneumatic support colunm for a chair | Emerging Cross-Sectional Technologies | 78 | Expired |
| US5086597A | Work space management system hallway wall arrangement | Fixed Constructions | 63 | Expired |
| USD386023S | Seat and back unit for a chair | General | 61 | Expired |
| USD377431S | Seat and back unit for a chair | General | 60 | Expired |
| USD358868S | Faucet mounted water treatment device | General | 50 | Expired |
| USD362583S | Carafe water purifier | General | 38 | Expired |
| USD420523S | Chair | General | 37 | Expired |
| US4054317A | Chair construction | Human Necessities | 35 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.