| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 | |
| #2 | Canada | 2 | |
| #3 | France | 2 | |
| #4 | Germany | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Machines | |
| #3 | Mechanical elements | |
| #4 | Packaging and shipping | |
| #5 | Engines, pumps and turbines | |
| #6 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Tools for connecting or disengaging | |
| #2 | Unspecified technologies | |
| #3 | Pistons and sealings | |
| #4 | Lifting and pushing | |
| #5 | Vehicle wheels | |
| #6 | Siphons |
| # | Name | Total Patents |
|---|---|---|
| #1 | Pfauser Edward M | 13 |
| #2 | Hayman Dennis J | 2 |
| #3 | Sigmund Mandl | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE1099288B | Fluid seal | |
| US1927844A | Socket wrench | |
| US1995009A | Ratchet mechanism | |
| US1925704A | Control for hydraulic rams | |
| US1936640A | Reversible friction clutch | |
| US1873473A | Hydraulic jack | |
| US1807134A | Socket wrench | |
| US1881029A | Socket wrench | |
| US1873472A | Socket wrench | |
| US1797730A | Socket attachment for tools | |
| US1896645A | Coupling for socket wrenches | |
| US1685503A | Socket wrench | |
| CA382978A | Hydraulic metal straightening machine | |
| CA288051A | Socket wrench |