| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | Canada | 1 | |
| #3 | Denmark | 1 | |
| #4 | EPO (European Patent Office) | 1 | |
| #5 | Republic of Korea | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machine tools | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Pistons and sealings | |
| #2 | Springs | |
| #3 | Punching metal | |
| #4 | Metal-working | |
| #5 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Janian Robert | 12 |
| #2 | Boyer Rolla J | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US2017159823A1 | Elastic contact seal | |
| US2016146351A1 | Rosette lipseal | |
| US2010001475A1 | Piston ring seal | |
| US2007108680A1 | Spring seal | |
| US2006033251A1 | Multi spring ring | |
| US4508356A | Modified C-shaped mechanical spring seal | |
| US4261192A | Method of making improved spring seal | |
| US4133542A | Spring seal |