Charlton Co., Ltd.
24Patents
1Active
24Granted
32Portfolio score
Filing activity: Jan 21, 1976 → Sep 9, 2009 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD255295S | Chair | General | 46 | Expired |
| USD258400S | Arm chair | General | 38 | Expired |
| USD251938S | Chair or similar article | General | 27 | Expired |
| US4046421A | Modular article of furniture | Emerging Cross-Sectional Technologies | 24 | Expired |
| USD253377S | Hassock or similar article | General | 23 | Expired |
| US4563824A | Method and apparatus for disc position centering | Physics | 21 | Expired |
| USD264289S | Cocktail table or similar article | General | 21 | Expired |
| US4586296A | Method of finishing the surface of a disc | Performing Operations; Transporting | 19 | Expired |
| USD253378S | Hassock or similar article | General | 18 | Expired |
| USD244077S | Shelf unit or similar article | General | 17 | Expired |
| USD251940S | Chair or similar article | General | 17 | Expired |
| USD255004S | Table base | General | 13 | Expired |
| USD244076S | Table | General | 13 | Expired |
| USD252057S | Hassock or similar article | General | 11 | Expired |
| US4545153A | Force sensor for controlling polishing pad pressure | Performing Operations; Transporting | 8 | Expired |
| US4620359A | Apparatus for manufacturing rigid computer memory disc substrates | Emerging Cross-Sectional Technologies | 8 | Expired |
| USD244327S | Sofa | General | 8 | Expired |
| USD254641S | Corner table | General | 7 | Expired |
| USD255305S | Table | General | 6 | Expired |
| US8191917B2 | Snowboard binding | Human Necessities | 4 | Active |
| USD255191S | Table | General | 4 | Expired |
| US4517772A | Rigid computer memory disc manufacturing method | Emerging Cross-Sectional Technologies | 3 | Expired |
| USD259907S | Etagere | General | 3 | Expired |
| USD251998S | Chair or similar article | General | 0 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.