| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 9 | |
| #2 | Canada | 3 | |
| #3 | EPO (European Patent Office) | 3 | |
| #4 | Japan | 3 | |
| #5 | Australia | 1 | |
| #6 | Brazil | 1 | |
| #7 | Sweden | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Machines | |
| #3 | Mechanical elements | |
| #4 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Motor vehicles | |
| #2 | Unspecified technologies | |
| #3 | Gearing | |
| #4 | Unspecified technologies | |
| #5 | Clutches and brakes | |
| #6 | Pistons and sealings | |
| #7 | Sawing | |
| #8 | Nails |
| # | Name | Total Patents |
|---|---|---|
| #1 | Sheppard Peter H | 15 |
| #2 | Sheppard Peter Harper | 3 |
| #3 | Piitaa Eichi Shiepaado | 3 |
| #4 | Giurlando Kenneth | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4978263A | Slot forming apparatus | |
| US4750378A | Ball screw mechanism | |
| US4513654A | Power steering gear with balanced valve | |
| US4411549A | Installation and retainer device for power steering pitman arm | |
| US4325288A | Power steering gear with initial lockable spring adjusting nuts | |
| US4337688A | Power steering gear with adjustable valve positioning pin | |
| US4257313A | Power steering piston and cylinder combination with plastic wear surfaces | |
| US4294161A | Power steering gear with oil filled capillary balancing slots |