David E. Workman
33Patents
12h-index
20Co-inventors
81Inventor score
Filing activity: Mar 6, 1975 → Nov 10, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5494157A | Computer bag with side accessible padded compartments | Emerging Cross-Sectional Technologies | 132 | Expired |
| US6220411A | Expandable luggage | Human Necessities | 54 | Expired |
| US4784248A | Piping for luggage and the like | Human Necessities | 54 | Expired |
| USD417134S | Bezel for wheeled luggage towing handle | General | 37 | Expired |
| US4066373A | Fastening device | Emerging Cross-Sectional Technologies | 25 | Expired |
| US6047442A | Releasable lock mechanism for luggage towing handle | Human Necessities | 22 | Expired |
| USD256632S | Shoulder tote bag | General | 21 | Expired |
| US6464180B2 | Pipe attaching apparatus | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| USD419853S | Handle and handle base for luggage | General | 15 | Expired |
| USD313888S | Luggage case | General | 14 | Expired |
| USD258471S | Hand tote bag | General | 13 | Expired |
| USD256631S | Shoulder tote bag | General | 13 | Expired |
| USD286466S | Luggage case | General | 12 | Expired |
| USD278000S | Attache case | General | 12 | Expired |
| US6141841A | Add-a-bag assembly for luggage | Emerging Cross-Sectional Technologies | 12 | Expired |
| US3967708A | Luggage case | Human Necessities | 11 | Expired |
| US7111376B2 | Tool with inserted blade members | Emerging Cross-Sectional Technologies | 11 | Expired |
| USD282509S | Attache case | General | 11 | Expired |
| US5113983A | Frame for soft luggage case | Human Necessities | 11 | Expired |
| USD315285S | Handle | General | 9 | Expired |
| US4280247A | Luggage case handle assembly | Emerging Cross-Sectional Technologies | 9 | Expired |
| US6298528A | D-ring with grommet | Emerging Cross-Sectional Technologies | 9 | Expired |
| USD311276S | Shell for luggage case | General | 8 | Expired |
| USD424403S | Handle and handle base for luggage | General | 8 | Expired |
| USD278878S | Luggage steering handle | General | 7 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.