| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 12 | |
| #2 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines | |
| #3 | Computer technology |
| # | Technology | |
|---|---|---|
| #1 | Pipes | |
| #2 | Unspecified technologies | |
| #3 | Nails | |
| #4 | Venting or aerating devices | |
| #5 | Mechanically computing digital computers | |
| #6 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Harding Hiram R | 12 |
| #2 | Trimble John H | 1 |
| #3 | Fink Charles F | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2704676A | Ring sealer | |
| US2569989A | Pressure stop nut | |
| US2525796A | Two-way washer | |
| US2603446A | Valve with double-acting washer | |
| US2515219A | Coupling | |
| US2547318A | Tube and pipe fitting | |
| US2540368A | Flareless tube and pipe coupling | |
| US2518469A | Lock nut | |
| US2469111A | Locked coupling | |
| US2518468A | Lubricated lock nut | |
| US2518467A | Lock nut | |
| US1326428A | Calculating-machine. | |
| CA501952A | Pressure stop nut |