| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 12 | |
| #2 | United Kingdom | 4 | |
| #3 | Canada | 1 | |
| #4 | Germany | 1 |
| # | Industry | |
|---|---|---|
| #1 | Optics | |
| #2 | Electrical machinery and energy | |
| #3 | Textiles and paper | |
| #4 | Machine tools |
| # | Name | Total Patents |
|---|---|---|
| #1 | Benson Harold R | 10 |
| #2 | Scheppe William N | 3 |
| #3 | Leonhart Charles J | 1 |
| #4 | Benson Harold Roscoe | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3359454A | Lamp control system for automatically controlling the cooling blower | |
| US3375366A | High intensity printing lamp | |
| US3399594A | Photographic machine | |
| US3334567A | Dot etch and clearing table | |
| US3266402A | Photographic printer | |
| US3297912A | Light source for photographic printer | |
| US3294004A | Sink | |
| US3204545A | Photographic work table | |
| US3158943A | Line-up table | |
| US3133350A | Scriber | |
| GB943519A | Photographic printer | |
| US3043204A | Photographic printer | |
| US2616059A | Arc lamp | |
| CA712318A | Line-up table |