| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 | |
| #2 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping | |
| #2 | Machine tools | |
| #3 | Machines | |
| #4 | Consumer goods | |
| #5 | Audio-visual technology |
| # | Technology | |
|---|---|---|
| #1 | Closing and opening bottles | |
| #2 | Unspecified technologies | |
| #3 | Hairstyling and cosmetic | |
| #4 | Punching metal | |
| #5 | Unspecified technologies | |
| #6 | Turning | |
| #7 | Special information storage | |
| #8 | Hats | |
| #9 | Sawing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Krag Franz K | 12 |
| Publication | Filing date | Title |
|---|---|---|
| US2690687A | Plier type jar cover remover | |
| US2667690A | Can opener and the like | |
| US2644690A | Tape guide and presser for tape recorders and the like | |
| US2533818A | Fulcrum type bottle opener | |
| US2519669A | Scrap cutter and the like | |
| US2388615A | Can opener | |
| US2289370A | Mortarboard cap and the like | |
| US2254533A | Can opener | |
| US1670582A | Powder box | |
| US1552173A | Powder box | |
| US1674867A | Drilling machine | |
| CA436811A | Can opener |