| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 95 | |
| #2 | Canada | 58 | |
| #3 | United Kingdom | 20 | |
| #4 | France | 17 | |
| #5 | Switzerland | 6 | |
| #6 | Germany | 5 | |
| #7 | Israel | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Engines, pumps and turbines | |
| #3 | Machines | |
| #4 | Materials and metallurgy | |
| #5 | Machine tools | |
| #6 | Transport |
| # | Name | Total Patents |
|---|---|---|
| #1 | Brenneke Arthur M | 30 |
| #2 | Teetor Ralph R | 23 |
| #3 | Shirk John F | 18 |
| #4 | Jones Cernyw F | 16 |
| #5 | Hill Robert H | 14 |
| #6 | Estey Melvin E | 8 |
| #7 | Myers Robert C | 4 |
| #8 | Hunt Myron C | 3 |
| #9 | Bunce Dean S | 3 |
| #10 | Taylor Charles D | 2 |
| Publication | Filing date | Title |
|---|---|---|
| GB975225A | Piston ring assembly | |
| GB1029088A | Control system | |
| GB994581A | Piston rings | |
| US3165779A | Fish cleaner | |
| US3138391A | Piston ring assembly | |
| US3198531A | Piston ring | |
| US3134602A | Piston ring | |
| US3197243A | Aligning and locking device | |
| US3186723A | Wear resistant sealing ring | |
| US3198188A | Valve stem seal | |
| US3086608A | Speed control device for an automotive vehicle | |
| US3066943A | Piston ring | |
| GB869081A | Composite structure and method of making same | |
| GB881932A | A spacer-expander for a piston ring assembly | |
| US3090460A | Speed control device for an automotive vehicle | |
| US3024029A | Piston ring | |
| US2951732A | Piston ring | |
| US3195905A | Piston ring assembly | |
| GB875290A | Valve stem seal | |
| GB836510A | Valve stem seal |