| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Brazil | 5 | |
| #2 | United States | 5 | |
| #3 | United Kingdom | 3 | |
| #4 | Canada | 1 | |
| #5 | Denmark | 1 | |
| #6 | Italy | 1 | |
| #7 | Sweden | 1 |
| # | Industry | |
|---|---|---|
| #1 | Optics | |
| #2 | Packaging and shipping | |
| #3 | Machines | |
| #4 | Measurement | |
| #5 | Chemical engineering | |
| #6 | Engines, pumps and turbines | |
| #7 | Mechanical elements |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hope H | 13 |
| #2 | Hope S | 12 |
| #3 | Pe S | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA986610A | Replenisher control for film developer | |
| US3807726A | Film receiving apparatus | |
| US3807616A | Removable rollers | |
| US3752052A | Fluid replenisher control device | |
| US3733926A | Interchangeable drive with balancing gears | |
| US3712205A | Daylight film loader |