| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 48 | |
| #2 | Canada | 19 | |
| #3 | France | 3 | |
| #4 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines | |
| #3 | Machine tools | |
| #4 | Packaging and shipping | |
| #5 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Pistons and sealings | |
| #2 | Unspecified technologies | |
| #3 | Metal-working | |
| #4 | Tools for connecting or disengaging | |
| #5 | Unspecified technologies | |
| #6 | Containers for goods storage | |
| #7 | Cylinders for combustion engines | |
| #8 | Nails | |
| #9 | Special machines | |
| #10 | Shafts |
| # | Name | Total Patents |
|---|---|---|
| #1 | Marien Charles A | 27 |
| #2 | Marien Melvin W | 13 |
| #3 | Marien Charles Anthony | 11 |
| #4 | Marien Melvin William | 6 |
| #5 | Frisby Frank D | 4 |
| #6 | Moeller George Joseph | 3 |
| #7 | Moeller George J | 3 |
| #8 | Ramsey John A | 2 |
| #9 | Green Benjamin F | 2 |
| #10 | Storey Omar M | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US2420040A | Shaft oil seal | |
| US2420047A | Composite sealing ring | |
| US2446224A | Hydraulic control oil ring | |
| US2450425A | Retaining ring | |
| US2420039A | Shaft sealing ring | |
| US2406844A | Piston ring | |
| US2292884A | Piston skirt expander | |
| US2292883A | Piston skirt expander | |
| US2319006A | Piston skirt expander | |
| US2326375A | Piston skirt expander | |
| US2284987A | Package | |
| US2288911A | Piston ring arrangement | |
| US2311240A | Coating for piston rings | |
| US2245992A | Piston ring | |
| US2234159A | Piston ring | |
| US2198829A | Piston skirt expander | |
| GB520192A | Improvements in piston rings | |
| US2240624A | Piston ring | |
| US2128372A | Piston ring | |
| US2151486A | Package |