| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 7 | |
| #2 | Japan | 2 | |
| #3 | Brazil | 1 | |
| #4 | Italy | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Packaging and shipping | |
| #4 | Engines, pumps and turbines | |
| #5 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Dredging | |
| #2 | Unspecified technologies | |
| #3 | Cranes | |
| #4 | Machines | |
| #5 | Servomotors |
| # | Name | Total Patents |
|---|---|---|
| #1 | Pilch John S | 7 |
| #2 | Jiyon Sutefuan Pirutsuku | 1 |
| #3 | Jiyon Sutefuen Buritsuchi | 1 |
| #4 | Pilch J | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4355945A | Tool mounting apparatus | |
| US4235567A | Material handling machine with adjustable speed-power relationship for boom movement | |
| US4138928A | Fluid actuated apparatus | |
| US4078680A | Swing mechanism for earthmoving apparatus such as a backhoe | |
| US4043470A | Hitch for coupling alignment of tractor and backhoe | |
| US3891104A | Swing mechanism for earth-moving apparatus | |
| US3894641A | Swing mechanism for earth-moving apparatus |