| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 15 | |
| #2 | Canada | 2 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Packaging and shipping | |
| #3 | Basic materials chemistry | |
| #4 | Machines | |
| #5 | Civil engineering | |
| #6 | Agriculture |
| # | Name | Total Patents |
|---|---|---|
| #1 | Singer Grover C | 17 |
| Publication | Filing date | Title |
|---|---|---|
| CA972903A | Portable toilet and enclosure therefor | |
| US2662554A | Valve | |
| US2457503A | Reflecting vapor lamp | |
| US2398971A | Electric lamp | |
| US2438684A | Electric lamp | |
| US2398970A | Electric lamp | |
| US2423525A | Electric lamp | |
| US2398969A | Electric lamp | |
| US2398968A | Electric lamp | |
| US2368685A | Multiple filament lamp | |
| US2374709A | Electric lamp | |
| US2365224A | Incandescent electric lamp and method of making the same | |
| US2315549A | Incandescent electric lamp | |
| US1846980A | Transplanting receptacle | |
| US1607105A | Portable coal tipple | |
| US1586922A | Portable coal tipple | |
| CA460854A | Electric lamp |