| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 12 | |
| #2 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Electrical machinery and energy | |
| #3 | Machine tools | |
| #4 | Medical technology | |
| #5 | Packaging and shipping | |
| #6 | Measurement | |
| #7 | Civil engineering |
| # | Name | Total Patents |
|---|---|---|
| #1 | Miller Roy G | 13 |
| Publication | Filing date | Title |
|---|---|---|
| US3359839A | Constant pressure watch back remover | |
| US2818894A | Constant pressure screw extractor with right-angularly adjustable supporting structure | |
| US2848263A | Silent door latch | |
| US2766783A | Log positioning apparatus | |
| US2687536A | Adjustable bed | |
| US2517012A | Fluid-tight closure | |
| US2620737A | All purpose hydraulic jack | |
| US2540133A | Adjustable hospital bed | |
| US2577474A | Valve lifter | |
| US2489717A | Theft-proof light socket | |
| US2497836A | Body jack | |
| US2306741A | Shockproof electric receptacle | |
| CA507898A | Adjustable hospital bed |