| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 12 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Optics | |
| #3 | Electrical machinery and energy | |
| #4 | Audio-visual technology | |
| #5 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Cameras | |
| #2 | Frames | |
| #3 | Capacitors and switching devices | |
| #4 | Nails | |
| #5 | Television | |
| #6 | Shafts | |
| #7 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Johnson Sr Joseph M | 12 |
| #2 | Burk Matthew L | 5 |
| #3 | Johnson Jr Joseph M | 1 |
| #4 | Chan Verent | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2015286116A1 | L-plate bracket for camera equipment | |
| US2014099093A1 | Extendible L-plate for camera equipment | |
| US2013236235A1 | Monopod head | |
| US2013235264A1 | Flash bracket |