| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 48 | |
| #2 | Canada | 3 | |
| #3 | Germany | 2 | |
| #4 | United Kingdom | 2 | |
| #5 | Denmark | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Machines | |
| #3 | Environmental technology | |
| #4 | Machine tools |
| # | Name | Total Patents |
|---|---|---|
| #1 | Pratt Goodrich B | 13 |
| #2 | Barber George H | 12 |
| #3 | Karl Reinhardt Otto | 10 |
| #4 | Stimson Frank G | 6 |
| #5 | Darling Roy L | 5 |
| #6 | Casella Secondo L | 2 |
| #7 | Brown James T | 2 |
| #8 | Younkman George W | 2 |
| #9 | Puckett Paul R | 2 |
| #10 | August Schuch | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US2062113A | Electric hand lantern | |
| US2045636A | Circuit closer for electric hand lanterns | |
| US2052654A | Wall light | |
| US2049762A | Portable electric lamp | |
| US2080583A | Flashlight | |
| US2025028A | Dry cell | |
| US2072568A | Dry cell encasing apparatus | |
| US1990504A | Flash light | |
| US2062107A | Dry cell | |
| US2066510A | Electric hand lantern | |
| DE617654C | Dry cell with a metallic cup | |
| GB398701A | Improvements in or relating to electric dry cells | |
| US2036088A | Hand lantern | |
| US2040423A | Flashlight | |
| US1990463A | Electrolytic cell | |
| US1948613A | Flash light | |
| US1980040A | Candle light | |
| US1934214A | Insulated flash light | |
| US1965130A | Dry cell making machinery | |
| US2062106A | Automatic polishing machine |