| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 13 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Machines | |
| #3 | Machine tools | |
| #4 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Rail vehicle suspensions | |
| #2 | Unspecified technologies | |
| #3 | Making forged metal products | |
| #4 | Springs |
| # | Name | Total Patents |
|---|---|---|
| #1 | Severn Arthur B | 12 |
| #2 | Wiebe Donald | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4198911A | Snubber | |
| US2169074A | Side bearing | |
| US2156706A | Roller side bearing | |
| US2156705A | Side bearing | |
| US2124958A | Side bearing | |
| US1961794A | Side bearing | |
| US1646769A | Side bearing | |
| US1584040A | Method of forming side bearings | |
| US1496030A | Roller side bearing | |
| US1499126A | Method of forming bearing cages | |
| US1490490A | Roller side bearing | |
| US1499125A | Roller side bearing | |
| US1479517A | Roller side bearing |