| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 | |
| #2 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Environmental technology | |
| #3 | Machines | |
| #4 | Furniture and games | |
| #5 | Measurement | |
| #6 | Materials and metallurgy |
| # | Technology | |
|---|---|---|
| #1 | Batteries | |
| #2 | Reduction of greenhouse gas emissions | |
| #3 | Skates | |
| #4 | Unspecified technologies | |
| #5 | Analysing materials | |
| #6 | Unspecified technologies | |
| #7 | Casting metal |
| # | Name | Total Patents |
|---|---|---|
| #1 | Coldwell John S | 3 |
| #2 | King Carl H | 3 |
| #3 | John Graves | 2 |
| #4 | Barkhausen Paul E | 2 |
| #5 | Appel George C | 2 |
| #6 | Wanvig Jr John D | 2 |
| #7 | Vicarey Robert W | 1 |
| #8 | Wyeth Allen | 1 |
| #9 | Zimmerman Herbert L | 1 |
| #10 | Wicarey Robert W | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2025149A | Handle for storage battery cases | |
| US2001174A | Skate wheel | |
| US2058134A | Pasting machine | |
| US1987668A | Roller skate | |
| US1965819A | Inspection machine | |
| US1945694A | Battery | |
| US1857360A | Roller skate | |
| US1863304A | Mold | |
| US1956022A | Automatic handling mechanism for storage battery panels | |
| US1942350A | Storage battery and method of making the same | |
| US1942351A | Storage battery | |
| CA363711A | Handle for storage battery cases |