| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 5 | |
| #2 | Canada | 2 | |
| #3 | United Kingdom | 2 | |
| #4 | Germany | 1 | |
| #5 | EPO (European Patent Office) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Electrical machinery and energy | |
| #3 | Machines | |
| #4 | Environmental technology | |
| #5 | Textiles and paper |
| # | Technology | |
|---|---|---|
| #1 | Clutches and brakes | |
| #2 | Gearing | |
| #3 | Unspecified technologies | |
| #4 | Electric switches | |
| #5 | Dynamo-electric machines | |
| #6 | Printing machines | |
| #7 | Climate change mitigation in goods production |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hendershot Robert V | 6 |
| #2 | Nelson Bertel S | 5 |
| #3 | Henderschot Robert V | 1 |
| #4 | V Hendershot Robert | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4951518A | Zero back lash phase adjusting mechanism | |
| US5041060A | Flexible coupling | |
| GB9015675D0 | Zero back lash phase adjusting mechanism | |
| EP0286055A2 | Phase adjusting mechanism | |
| CA1292375C | Shaft support system | |
| CA1292374C | Phase adjusting mechanism | |
| US4832659A | Shaft support system | |
| US4832658A | Phase adjusting mechanism | |
| US3465269A | Phase time variator |