TOPSTAR GMBH
🏢 View company profile →15Patents
9Active
15Granted
37Portfolio score
Filing activity: May 7, 2004 → Nov 30, 2018 · 4 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD665589S1 | Chair | General | 60 | Active |
| USD665590S1 | Chair | General | 48 | Active |
| USD549473S1 | Chair | General | 35 | Expired |
| USD549474S1 | Chair | General | 19 | Expired |
| US8888184B2 | Tilting device for a chair | Human Necessities | 18 | Active |
| USD569636S1 | Chair | General | 11 | Expired |
| USD623430S1 | Chair | General | 11 | Expired |
| USD665604S1 | Seat back | General | 9 | Active |
| US9700142B2 | Backrest or seating element | Human Necessities | 9 | Active |
| USD554879S1 | Swivel chair | General | 7 | Expired |
| USD569635S1 | Chair | General | 5 | Expired |
| USD929141S1 | Chair with an articulated joint | General | 5 | Active |
| USD854914S1 | Articulated joint for a chair | General | 4 | Active |
| USD775480S1 | Chair | General | 3 | Active |
| USD775847S1 | Chair | General | 2 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.