| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 18 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods | |
| #2 | Transport | |
| #3 | Control | |
| #4 | Machines | |
| #5 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Hats | |
| #2 | Hats | |
| #3 | Vehicle seats | |
| #4 | Special furniture | |
| #5 | Unspecified technologies | |
| #6 | Walking sticks | |
| #7 | Teaching materials |
| # | Name | Total Patents |
|---|---|---|
| #1 | Edward Wittcoff | 18 |
| Publication | Filing date | Title |
|---|---|---|
| US2796680A | Novelty educational hats | |
| US2229160A | Combined seat-back cover and cushion | |
| US2207907A | Headwear | |
| US2147872A | Head covering | |
| US2147873A | Head covering | |
| US2111257A | Head-covering | |
| US2127797A | Headwear | |
| US2040355A | Headwear | |
| US2016473A | Advertising display stand | |
| US1955040A | Adjustable seat shield | |
| US1997027A | Universal seat pad | |
| US1932005A | Straw hat manufacture | |
| US1932004A | Headwear | |
| US1774074A | Hat | |
| US1755198A | Hat | |
| US1673859A | Hat | |
| US1641310A | Straw hat and method of making same | |
| US1422908A | Seat cover |