| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 16 |
| # | Industry | |
|---|---|---|
| #1 | Control | |
| #2 | Chemical engineering | |
| #3 | Consumer goods | |
| #4 | Environmental technology | |
| #5 | Machine tools | |
| #6 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Alarm systems | |
| #2 | Textile treatments | |
| #3 | Laundering textiles | |
| #4 | Time tables | |
| #5 | Registering devices | |
| #6 | Safes | |
| #7 | Percussive tools | |
| #8 | Garbage disposal |
| # | Name | Total Patents |
|---|---|---|
| #1 | Stelter Francis C W | 16 |
| #2 | Stelter Anna Dorothy M | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2797405A | Container for valuables with alarm system | |
| US2643372A | Burglar alarm system | |
| US2619921A | Burglar alarm system | |
| US2544621A | Timing device | |
| US2438076A | Electrical burglar alarm system | |
| US2416963A | Burglar alarm for cash drawers | |
| US2276632A | Cash register burglar alarm | |
| US1589668A | Dyeing apparatus | |
| US1531997A | Dyeing apparatus | |
| US1503719A | Glove-cleaning machine | |
| US1452129A | Dyeing machine | |
| US722924A | Calendar. | |
| US732459A | Ash-cart. | |
| US690670A | Calendar. | |
| US674640A | Hammer. | |
| US650442A | Mercerizing-machine. |