GRAMMER AG
329Patents
281Active
329Granted
58Portfolio score
Filing activity: Mar 28, 1989 → May 15, 2023 · 36 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5106161A | Cushion portion for a seat | Human Necessities | 160 | Expired |
| US7108322B2 | Mechanism for changing a position of a support surface | Performing Operations; Transporting | 66 | Expired |
| US5058852A | Vehicle seat which is adjustable in height and with automatic weight adjustment | Performing Operations; Transporting | 51 | Expired |
| USD428719S | Vehicle seat | General | 50 | Expired |
| US6554360B1 | Seat | Performing Operations; Transporting | 47 | Expired |
| USD426392S | Vehicle seat | General | 44 | Expired |
| US8931750B2 | Change of spring force by means of levers | Performing Operations; Transporting | 42 | Active |
| USD362126S | Vehicle seat | General | 39 | Expired |
| US9809136B2 | Device for damping an upper suspension part in at least one spatial direction with respect to a lower suspension part movable relative thereto | Performing Operations; Transporting | 38 | Active |
| US7712836B2 | Vehicle seat comprising a height-adjustable seat frame | Mechanical Engineering; Lighting; Heating | 38 | Active |
| US8684339B2 | Control device to reduce vibration movement on a device vibrating under spring force | Mechanical Engineering; Lighting; Heating | 37 | Active |
| US8534760B2 | Headrest for a vehicle seat | Performing Operations; Transporting | 36 | Active |
| US7874618B2 | Vehicle seat with a deformable backrest | Performing Operations; Transporting | 34 | Expired |
| US8011728B2 | Vehicle seat with a seat depth adjustment device | Performing Operations; Transporting | 34 | Active |
| US5533703A | Sprung vehicle seat | Performing Operations; Transporting | 30 | Expired |
| US7144083B2 | Headrest for a vehicle seat | Performing Operations; Transporting | 27 | Expired |
| US7631932B2 | Horizontally adjustable motor-vehicle headrest | Performing Operations; Transporting | 26 | Active |
| US5211369A | Sprung seat frame for a seat | Performing Operations; Transporting | 25 | Expired |
| US5502284A | Seat plate assembly | Performing Operations; Transporting | 24 | Expired |
| USD523646S1 | Short backrest car seat | General | 24 | Expired |
| US8342541B2 | Apparatus and method for active spring suspension of a vehicle component | Performing Operations; Transporting | 23 | Active |
| US9180792B2 | Commercial vehicle seat having a locking member | Performing Operations; Transporting | 22 | Active |
| US5505521A | Sprung seat frame | Performing Operations; Transporting | 22 | Expired |
| USD534731S1 | Long backrest car seat | General | 21 | Expired |
| US9211812B2 | Utility vehicle seat with integrated rotation adjustment device | Performing Operations; Transporting | 20 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.