| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | Canada | 3 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines | |
| #3 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices | |
| #2 | Unspecified technologies | |
| #3 | Pipes | |
| #4 | Vehicle transmission mounting |
| # | Name | Total Patents |
|---|---|---|
| #1 | Wildern William J | 3 |
| #2 | Porter Gordon E | 2 |
| #3 | Frank Robert R | 2 |
| #4 | Stevens Joe M | 2 |
| #5 | Imhoff Robert E | 1 |
| #6 | Wiggs Lawrence A | 1 |
| #7 | Plaut Antoine P | 1 |
| #8 | Green Arthur J | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3280844A | Cam-controlled valve structure | |
| US3233925A | Tube coupling | |
| US3038695A | Flared tube gas cock | |
| US2984256A | Gas valve structure | |
| US2930245A | Valve operating mechanism | |
| US2912870A | Valve operating mechanism | |
| US2912881A | Operating mechanism for a gas valve | |
| US1642129A | Vacuum feed | |
| CA757500A | Cam-controlled valve structure | |
| CA742114A | Tube coupling | |
| CA643764A | Flared tube gas cock |