Douglas C. Ball
39Patents
26h-index
34Co-inventors
85Inventor score
Filing activity: Nov 3, 1975 → Sep 18, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6523898B1 | Chair construction | Human Necessities | 186 | Expired |
| US4224769A | Space divider system | Fixed Constructions | 161 | Expired |
| US6913315B2 | Chair construction | Human Necessities | 140 | Expired |
| US4323291A | Desk or the like with wire management | Human Necessities | 140 | Expired |
| US5155955A | Frame based office space dividing system | Mechanical Engineering; Lighting; Heating | 128 | Expired |
| US5438937A | Mobile table system | Emerging Cross-Sectional Technologies | 127 | Expired |
| US4771583A | Space divider system | Fixed Constructions | 105 | Expired |
| US4119163A | Curb climbing wheel chair | Emerging Cross-Sectional Technologies | 99 | Expired |
| US4403673A | Powered vehicle | Emerging Cross-Sectional Technologies | 93 | Expired |
| US4831791A | Space divider system | Fixed Constructions | 73 | Expired |
| US4863124A | Corner work center | Emerging Cross-Sectional Technologies | 68 | Expired |
| USD359405S | Mobile table | General | 51 | Expired |
| US6698833B2 | Chair construction | Human Necessities | 50 | Expired |
| US5205223A | Folding table | Human Necessities | 50 | Expired |
| US4751884A | Height adjustable work top | Human Necessities | 46 | Expired |
| US4974808A | Computer support | Human Necessities | 45 | Expired |
| USD456650S1 | Chair component | General | 45 | Expired |
| US4018479A | Office chair | Emerging Cross-Sectional Technologies | 45 | Expired |
| USD336394S | Table | General | 44 | Expired |
| US7913459B2 | Work space management system | Fixed Constructions | 39 | Active |
| USD457023S1 | Chair component | General | 34 | Expired |
| US7740315B2 | Back construction for seating unit | Human Necessities | 34 | Active |
| USD343311S | Table | General | 31 | Expired |
| USD293981S | Partition unit | General | 30 | Expired |
| US5177912A | Computer workstation | Fixed Constructions | 29 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.