| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 9 | |
| #2 | Germany | 2 | |
| #3 | Mexico | 1 |
| # | Industry | |
|---|---|---|
| #1 | Surface technology and coating | |
| #2 | Engines, pumps and turbines | |
| #3 | Machines | |
| #4 | Machine tools | |
| #5 | Mechanical elements |
| # | Name | Total Patents |
|---|---|---|
| #1 | Gary Joseph V | 3 |
| #2 | Sjoberg James G | 2 |
| #3 | Oren Letendre Calvin | 2 |
| #4 | Fortino Dennis J | 1 |
| #5 | Schweikher E | 1 |
| #6 | Miller John E | 1 |
| #7 | Bell Henderson M | 1 |
| #8 | Schwartz Kevie W | 1 |
| #9 | Bohlman Walter S | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4770206A | Mud pump valve | |
| US4706417A | Finish for cylinder liners | |
| US4735129A | Single acting mud pump piston | |
| US4516785A | Piston with a controlled expansion piston anti-extrusion ring | |
| US3749072A | Internal combustion engine cylinder liners | |
| US2438885A | Apparatus for electroplating rings and discs | |
| US1809826A | Process of electrodepositing chromium | |
| US1720354A | Method and apparatus for electrodepositing chromium |