| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 3 | |
| #2 | Canada | 2 | |
| #3 | United Kingdom | 2 | |
| #4 | Austria | 1 | |
| #5 | Belgium | 1 | |
| #6 | Germany | 1 | |
| #7 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Packaging and shipping | |
| #3 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Alloys | |
| #2 | Transport or storage devices | |
| #3 | Metal tempering | |
| #4 | Metal wire processing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Doepken Herbert C | 2 |
| #2 | Carl Scherfel Otto | 2 |
| #3 | Doepken Herbert Charles | 2 |
| #4 | Scherfel Otto C | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3300030A | Conveyor belt | |
| US3048505A | Process of prehardening austenitic manganese steel | |
| US3008676A | Wire fabric | |
| CA771000A | Conveyor belt | |
| CA657295A | Process of prehardening austenitic manganese steel |