| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 14 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Machines | |
| #3 | Mechanical elements | |
| #4 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Air-conditioning | |
| #2 | Unspecified technologies | |
| #3 | Venting or aerating devices | |
| #4 | Fire-fighting | |
| #5 | Nails | |
| #6 | Locks |
| # | Name | Total Patents |
|---|---|---|
| #1 | Stanley Hart | 7 |
| #2 | Hilding Anderson | 4 |
| #3 | Tutt Richard D | 3 |
| #4 | Leonard Zavorski | 1 |
| #5 | Julius Carlson | 1 |
| #6 | Person Ernest H | 1 |
| #7 | Payne Nelson M | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2724320A | Distributing system | |
| US2713350A | Damper | |
| US2674934A | Air conditioning and distributing system | |
| US2621579A | Damper | |
| US2250787A | Fusible nut | |
| US2276139A | Frame | |
| US2136652A | Remote control for ventilating devices | |
| US2163307A | Latch and lock | |
| US2146391A | Damper for registers | |
| US2140935A | Air deflecting device | |
| US2090908A | Air deflecting device | |
| US2103982A | Adjustable register | |
| US2082335A | Control register for air conditioning apparatus | |
| US2017407A | Regulating device for forced air registers |