| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 20 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Materials and metallurgy | |
| #3 | Machines | |
| #4 | Measurement | |
| #5 | Control |
| # | Name | Total Patents |
|---|---|---|
| #1 | Bear Paul S | 13 |
| #2 | Bucklen Herbert E | 6 |
| #3 | Hedin Uno C | 5 |
| #4 | Trautman Charles W | 2 |
| #5 | Spates Gerald E | 2 |
| #6 | Roy Billings | 1 |
| #7 | Schirmer Walter E | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2303548A | Mercury relay | |
| US2288090A | Mercury relay | |
| US2296194A | Mercury switch | |
| US2297924A | Mercury switch | |
| US2288089A | Mercury relay | |
| US2282512A | Mercury switch | |
| US2284899A | Method of making mercury switches | |
| US2265681A | Mercury switch | |
| US2251316A | Switch | |
| US2207710A | Switch | |
| US2250001A | Switch | |
| US2251315A | Switch | |
| US2228251A | Switch | |
| US2167824A | Condition controller | |
| US2132922A | Switch | |
| US2134694A | Preparation of mercury for use in mercury switches | |
| US2132921A | Switch | |
| US2132920A | Switch | |
| US2137711A | Switch | |
| US2251011A | Switch |