| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 9 | |
| #2 | Canada | 1 | |
| #3 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Mechanical elements | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Springs | |
| #2 | Vehicle suspension arrangements | |
| #3 | Motor vehicles | |
| #4 | Unspecified technologies | |
| #5 | Vehicle parts |
| # | Name | Total Patents |
|---|---|---|
| #1 | Nilsson Robert W | 5 |
| #2 | Hendrickson Niels E | 3 |
| #3 | Hanslip Richard E | 2 |
| #4 | Figgie Harry E | 1 |
| #5 | Imber Lawrence O | 1 |
| #6 | Miller George F | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2983505A | Torsion spring | |
| US2864121A | Torsion spring hinge unit | |
| US2163875A | Spring terminal reinforcement | |
| US2184381A | Spring leaf manufacture | |
| GB501170A | Vehicle spring suspension | |
| US2150622A | Load cushioning | |
| US2109074A | Vehicle spring suspension | |
| US2116907A | Spring assembly means | |
| US1900841A | Spring construction | |
| US1732166A | Bumper | |
| CA375972A | Vehicle spring suspension |