| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 16 | |
| #2 | France | 1 | |
| #3 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Machines | |
| #3 | Mechanical elements | |
| #4 | Electrical machinery and energy | |
| #5 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Cyclically operating valves | |
| #2 | Unspecified technologies | |
| #3 | Shafts | |
| #4 | Venting or aerating devices | |
| #5 | Aeroplanes | |
| #6 | Electric motor controls |
| # | Name | Total Patents |
|---|---|---|
| #1 | Anthony Marcus O | 7 |
| #2 | Buck Wilmer G | 6 |
| #3 | Wasley Arthur J | 2 |
| #4 | Chin Pao H | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3008343A | Sealed bearing | |
| US2960372A | Sealed bearing | |
| US2715706A | Motor control circuit | |
| US1462160A | Rotary valve | |
| US1610409A | Brake | |
| US1520273A | Rotary valve | |
| US1454423A | Rotary valve for internal-combustion engines | |
| US1467991A | Self-grinding poppet valve | |
| US1520272A | Valve-rotating mechanism | |
| US1626067A | Valve-rotating mechanism | |
| US1513741A | Valve rotator | |
| US1414499A | Valve-rotating device | |
| US1528193A | Valve-rotating device | |
| US1359669A | Valve-rotator for internal-combustion engines | |
| US1479169A | Rotator for valves of internal-combustion engines | |
| GB117182A | Improvements in Valves for Internal Combustion Engines. | |
| US1244287A | Valve for internal-combustion engines. |