| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 13 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology | |
| #2 | Transport | |
| #3 | Surface technology and coating | |
| #4 | Machines | |
| #5 | Electrical machinery and energy | |
| #6 | Machine tools | |
| #7 | Consumer goods | |
| #8 | Civil engineering |
| # | Name | Total Patents |
|---|---|---|
| #1 | Willwerscheid Theodor R | 13 |
| #2 | Dayton Howard B | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1875687A | Driving head for support posts | |
| US1863955A | Sign | |
| US1863819A | Reflecting button for signs | |
| US1846173A | Sign | |
| US1571614A | Stamping machine with transferable dies | |
| US1740054A | Lamp-post with illuminated street signs | |
| US1494658A | Plate-securing device | |
| US1532461A | Luggage carrier | |
| US1375126A | Painting-machine | |
| US1264358A | Spray finishing-machine. | |
| US1201786A | Sign. | |
| US1075318A | Lamp-socket. | |
| US807343A | Sign. |