| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 9 | |
| #2 | Canada | 3 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Telecommunications | |
| #3 | Basic communication technologies | |
| #4 | Mechanical elements | |
| #5 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Telephonic communication | |
| #2 | Physical training equipment | |
| #3 | Modulation | |
| #4 | Mining | |
| #5 | Doors and windows | |
| #6 | Machines for making railways | |
| #7 | Springs | |
| #8 | Water-closets with flushing devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Cook John W | 12 |
| #2 | Smith Detlev F | 1 |
| #3 | Heinle Matthew A | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2008207414A1 | Collapsible and storable apparatus for exercising core muscles | |
| US2462363A | Spring | |
| US1839650A | Transmitter system | |
| US1586655A | Closet-valve structure | |
| US1749416A | Telephone and telegraph circuits | |
| US1430493A | Rock-cutting machine | |
| CA159682A | Rail joint | |
| CA159532A | Rock cutter | |
| US1132446A | Rail-joint. | |
| US1066799A | Lock for screens. | |
| CA698829A | Free wheeling toy |