| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 23 | |
| #2 | Germany | 9 | |
| #3 | United Kingdom | 9 | |
| #4 | Canada | 6 | |
| #5 | France | 6 | |
| #6 | Denmark | 1 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology | |
| #2 | Machines | |
| #3 | Civil engineering | |
| #4 | Control | |
| #5 | Basic communication technologies | |
| #6 | Electrical machinery and energy | |
| #7 | Optics | |
| #8 | Medical technology |
| # | Technology | |
|---|---|---|
| #1 | Special information storage | |
| #2 | Unspecified technologies | |
| #3 | Locks | |
| #4 | Coin-freed | |
| #5 | Loudspeakers and microphones | |
| #6 | Tuning resonant circuits | |
| #7 | Dynamo-electric machines | |
| #8 | Physical therapy devices | |
| #9 | Cameras | |
| #10 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Green Clifford H | 8 |
| #2 | Yeider Harry A | 6 |
| #3 | Olson Phillip W | 5 |
| #4 | Andres Lloyd J | 4 |
| #5 | Kenyon Bertram C | 2 |
| #6 | Olson Philip W | 2 |
| #7 | Boa Wilmur W | 2 |
| #8 | Yeider Harry Alvord | 1 |
| #9 | Andres Lloyd John | 1 |
| #10 | Larsson Burt H | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE694147C | Massage device | |
| GB485892A | Electric vibrator | |
| GB498030A | Improvements in gramophones | |
| US2079628A | Lock plug construction | |
| US2073583A | Removable lock | |
| US2076410A | Massage instrument | |
| US2078928A | Stylus arm switch | |
| US2049860A | Sliding panel lock | |
| US2069639A | Lubricating system | |
| GB422093A | Improvements in locks | |
| GB422092A | Improvements in lock keys | |
| US2023208A | Cylinder lock | |
| US2023207A | Lock key | |
| US2072876A | Phonograph control | |
| US2020260A | Lock barrel retaining pin | |
| US2074636A | Projection shutter | |
| US2073773A | Photoelectric converter | |
| US1996331A | Table leg adjustment | |
| US2063573A | Record holder for graphophones | |
| GB422196A | Improvements in coin-operated mechanism |