| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 32 | |
| #2 | Canada | 6 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines | |
| #3 | Machine tools | |
| #4 | Audio-visual technology | |
| #5 | Optics | |
| #6 | Packaging and shipping | |
| #7 | Engines, pumps and turbines | |
| #8 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Nails | |
| #2 | Unspecified technologies | |
| #3 | Unspecified technologies | |
| #4 | Making forged metal products | |
| #5 | Tools for connecting or disengaging | |
| #6 | Office furniture | |
| #7 | Closing and opening bottles | |
| #8 | Cyclically operating valves | |
| #9 | Advertising | |
| #10 | Cameras |
| # | Name | Total Patents |
|---|---|---|
| #1 | Luce Richard W | 38 |
| #2 | Engstrom Henry O | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2787238A | Hygrometric indicator | |
| US2778102A | Can opener and anti-splash shield combination | |
| US2706138A | Pivotally mounted holder for table legs | |
| US2529093A | Lock nut | |
| US2440963A | Method of making molds | |
| US2421278A | Nut structure | |
| US2429833A | Fastening means | |
| US2478972A | Cowl fastener stud | |
| US2412896A | Threaded locking device | |
| US2376927A | Threaded locking device | |
| US2421277A | Reflective sign | |
| US2444356A | Retrodirective light-reflecting device | |
| US2429832A | Method of making threaded locking devices | |
| US2351057A | Method of making threaded locking devices | |
| US2425104A | Threaded locking device and method of making same | |
| US2428463A | Threaded locking device | |
| US2391989A | Threaded locking device | |
| US2389989A | Anchor nut | |
| US2409702A | Fastener | |
| US2399442A | Tool |