| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 | |
| #2 | EPO (European Patent Office) | 1 | |
| #3 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Furniture and games | |
| #3 | Machines | |
| #4 | Mechanical elements | |
| #5 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Vehicle seats | |
| #2 | Chairs and beds | |
| #3 | Nails | |
| #4 | Unspecified technologies | |
| #5 | Unspecified technologies | |
| #6 | Electric switches |
| # | Name | Total Patents |
|---|---|---|
| #1 | Wahls Robert J | 7 |
| #2 | Koa Chi H | 4 |
| #3 | Maccready Willis | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US2007041806A1 | Fastening device | |
| US6359245B1 | Tractor seat safety system | |
| US6336619B1 | Adjustable seat platform | |
| US6186467B1 | Full seat adjustable suspension | |
| US5601338A | Seat structure with adjustable suspension | |
| US5044694A | Seat pan and spring plate assembly | |
| US5067773A | Foam seat cushion with clamped edges | |
| US5067772A | Foam seat with insert | |
| US4561695A | Seat with foam snap-on cover | |
| US4307865A | Universal tractor seat |