| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 12 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Civil engineering | |
| #3 | Electrical machinery and energy | |
| #4 | Machines | |
| #5 | Environmental technology | |
| #6 | Transport | |
| #7 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Separation | |
| #2 | Swimming pools | |
| #3 | Unspecified technologies | |
| #4 | AC and DC conversion devices | |
| #5 | Electric discharge tubes | |
| #6 | Lighter-than air aircraft | |
| #7 | Physical training equipment | |
| #8 | Water treatment |
| # | Name | Total Patents |
|---|---|---|
| #1 | Sirch Charles W | 12 |
| Publication | Filing date | Title |
|---|---|---|
| US2106068A | Diving board apparatus | |
| US1855323A | Minute feed apparatus | |
| US1860435A | Radiating marine apparatus | |
| US1855258A | Multiple jet inlet | |
| US1797800A | Outlet | |
| US1554043A | Filter attachment and method of using same | |
| US1416899A | Process for purifying liquids | |
| US1398205A | Filter | |
| US1408228A | Vacuum-cleaned filter | |
| US1221234A | Aerial locomotion. | |
| US931806A | Rectifier. | |
| US1133447A | Current-rectifying system. |