| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | Canada | 3 | |
| #3 | Germany | 2 | |
| #4 | United Kingdom | 2 | |
| #5 | Australia | 1 | |
| #6 | Belgium | 1 | |
| #7 | Switzerland | 1 | |
| #8 | Spain | 1 | |
| #9 | France | 1 | |
| #10 | Israel | 1 | |
| #11 | Italy | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Mechanical elements | |
| #3 | Machines | |
| #4 | Computer technology | |
| #5 | Agriculture |
| # | Name | Total Patents |
|---|---|---|
| #1 | Swenson George H | 2 |
| #2 | Swenson G | 1 |
| #3 | Giles G | 1 |
| #4 | Manasas A Paul | 1 |
| #5 | Hills David A | 1 |
| #6 | Hills D | 1 |
| #7 | Swenson G H | 1 |
| #8 | Carter William R | 1 |
| #9 | Dietz William A | 1 |
| #10 | Lawrence William R | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4358678A | Fiber optic transducer and method | |
| US4307816A | Meter closure | |
| CA1074828A | Testable pipe saddle and method | |
| US3789874A | Changing bias check valve | |
| US3813525A | Counter and preset unit | |
| US3811323A | Liquid meter | |
| US3659457A | Register box and lid for meters | |
| US3685735A | Irrigating apparatus | |
| US3700007A | Cycling valve and valving assembly for water softeners |