| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 33 |
| # | Industry | |
|---|---|---|
| #1 | Optics | |
| #2 | Textiles and paper | |
| #3 | Thermal processes | |
| #4 | Machine tools | |
| #5 | Audio-visual technology | |
| #6 | Packaging and shipping | |
| #7 | Machines | |
| #8 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Cameras | |
| #2 | Typewriters | |
| #3 | Burners | |
| #4 | Hand-held cutting tools | |
| #5 | Special information storage | |
| #6 | Office furniture | |
| #7 | Containers for goods storage | |
| #8 | Heat-exchanger with contact | |
| #9 | Optical systems | |
| #10 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Roebuck Alvah C | 33 |
| #2 | Mcmillan Frank | 3 |
| #3 | Pruszynski Adolph J | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2105009A | Convertible material working machine | |
| US1484083A | Motion-picture apparatus | |
| US1455095A | Fire-door-operating mechanism | |
| US1455094A | Intermittent-shutter mechanism | |
| US1455096A | Motion-picture machine | |
| US1455093A | Speed control | |
| US1552234A | Safety razor | |
| US1336923A | Safety-razor | |
| US1282293A | Condensing-lens mount. | |
| US1293553A | Angle-adjusting mechanism. | |
| US1168333A | Ribbon-vibrator. | |
| US1166483A | Ribbon-reverse mechanism. | |
| US1188491A | Type-writer ribbon-vibrator. | |
| US1149293A | Type-writer. | |
| US1189486A | Type-writer ribbon-feed. | |
| US1146959A | Type-writing machine. | |
| US1187653A | Type-writing machine. | |
| US961536A | Film-reeling mechanism. | |
| US927875A | Kinetoscope. | |
| US939634A | Kinetoscope. |