| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 17 | |
| #2 | Canada | 4 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machine tools | |
| #3 | Machines | |
| #4 | Packaging and shipping | |
| #5 | Textiles and paper |
| # | Technology | |
|---|---|---|
| #1 | Shafts | |
| #2 | Grinding or polishing devices | |
| #3 | Unspecified technologies | |
| #4 | Unspecified technologies | |
| #5 | Turning | |
| #6 | Rolling metal | |
| #7 | Transport or storage devices | |
| #8 | Calendars |
| # | Name | Total Patents |
|---|---|---|
| #1 | Herrmann Karl L | 15 |
| #2 | Herrmann Karl Ludwich | 4 |
| #3 | Rogers Winfield S | 1 |
| #4 | Allee Herbert D | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2038079A | Antifriction bearing | |
| US2138601A | Roller aligner | |
| US2033074A | Antifriction bearing | |
| US2020837A | Machine for cutting roller blanks | |
| US2041764A | Feeding device for grinders | |
| US1970699A | Antifriction bearing | |
| US2007152A | Roller bearing | |
| US1946440A | Apparatus and method of finishing rollers | |
| US1946441A | Mechanism and method of finishing rollers | |
| US1854934A | Method of grinding irregular shafts | |
| US1931073A | Antifriction bearing | |
| US1956289A | Antifriction bearing | |
| US1880347A | Method of grinding bearing races | |
| US1963407A | Antifriction bearing | |
| US1951481A | Antifriction bearing | |
| US1913275A | Antifriction bearing | |
| US1565330A | Ball bearing | |
| CA358636A | Roller bearing | |
| CA357586A | Anti-friction bearing | |
| CA359872A | Roller aligner |