Douglas A. Schroeder
26Patents
11h-index
23Co-inventors
75Inventor score
Filing activity: Sep 23, 1996 → Feb 10, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6572190B2 | Lumbar support for a chair | Human Necessities | 265 | Expired |
| US6729691B2 | Chair back construction | Human Necessities | 228 | Expired |
| US6669292B2 | Ergonomic chair | Human Necessities | 192 | Expired |
| US6568760B2 | Chair of modular construction | Human Necessities | 84 | Expired |
| USD476821S1 | Ergonomic chair | General | 65 | Expired |
| USD390384S | Chair | General | 36 | Expired |
| USD433833S | Chair | General | 27 | Expired |
| USD462187S1 | Chair | General | 24 | Expired |
| USD408164S | Chair | General | 19 | Expired |
| USD460869S1 | Chair | General | 17 | Expired |
| USD477151S1 | Armless ergonomic chair | General | 16 | Expired |
| USD388270S | Chair arm | General | 10 | Expired |
| USD444969S | Table leg | General | 8 | Expired |
| USD411777S | Base for a chair | General | 8 | Expired |
| USD530533S1 | Chair | General | 8 | Expired |
| USD446400S | Chair | General | 7 | Expired |
| US10799028B2 | Chairs including flexible frames | Human Necessities | 5 | Active |
| USD461658S1 | Chair back lumbar support | General | 4 | Expired |
| USD462186S1 | Chair | General | 4 | Expired |
| USD454270S1 | Chair arm | General | 4 | Expired |
| USD390386S | Chair arm | General | 4 | Expired |
| USD462858S1 | Chair back frame | General | 2 | Expired |
| USD461659S1 | Chair back framework | General | 1 | Expired |
| USD477164S1 | Chair back | General | 0 | Expired |
| US12075921B2 | Chairs including flexible frames | Human Necessities | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.