| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | Switzerland | 1 | |
| #3 | France | 1 | |
| #4 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Optics | |
| #2 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Cameras | |
| #2 | Optical systems | |
| #3 | Grinding or polishing devices | |
| #4 | Photomechanical semiconductor production |
| # | Name | Total Patents |
|---|---|---|
| #1 | Mueller Emil M | 5 |
| #2 | Durand Milo A | 2 |
| #3 | Giesecke Heinrich | 1 |
| #4 | Heinrich Giesecke | 1 |
| #5 | Paul Kirsch | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB994977A | Improvements in or relating to photographic cameras | |
| US2383115A | Photographic lens | |
| US2383131A | Apparatus for polishing optical flats | |
| US2260368A | Lens system | |
| US1879412A | Sighting device | |
| US1797175A | Auxiliary reel holder for movie cameras | |
| US1892846A | Camera | |
| US1733511A | Camera | |
| US1420053A | Shutter attachment for moving-picture cameras |