| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 4 | |
| #2 | United States | 3 | |
| #3 | France | 2 | |
| #4 | United Kingdom | 2 | |
| #5 | Germany | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines | |
| #3 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | Pistons and sealings | |
| #2 | Nails | |
| #3 | Containers for goods storage | |
| #4 | Unspecified technologies | |
| #5 | Shaping of plastics |
| # | Name | Total Patents |
|---|---|---|
| #1 | Lang William F | 3 |
| #2 | Spengler Donald F | 3 |
| #3 | Hoover John W | 2 |
| #4 | Mccuistion Tommy J | 1 |
| #5 | Neff Minor F | 1 |
| #6 | Spengler Donald Ferdinand | 1 |
| #7 | Jun Edwin Henry Ahlefeld | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3170701A | Sealing washer | |
| US2737292A | Packing ring support | |
| GB729320A | Improvements in or relating to sealing devices between relatively rotatable elements | |
| US2647810A | Sealing assembly | |
| CA750667A | Sealing washer | |
| CA794760A | Machine for making molded bodies from plastic material | |
| CA794761A | Machine for making molded bodies from plastic material | |
| CA774477A | Machine for making molded bodies from plastic material |