| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 9 | |
| #2 | Canada | 3 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Mechanical elements | |
| #3 | Agriculture | |
| #4 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices | |
| #2 | Unspecified technologies | |
| #3 | Animal care | |
| #4 | Non-positive-displacement pumps |
| # | Name | Total Patents |
|---|---|---|
| #1 | Maxwell James D | 12 |
| Publication | Filing date | Title |
|---|---|---|
| US4208824A | Fish lure | |
| US3619932A | Weight release mechanism | |
| US3579890A | Collapsible fish net | |
| US1679485A | Salinometer, test, and gauge cock | |
| US1613183A | Valve | |
| US1619211A | Pump packing | |
| US1420663A | Valve construction | |
| US1420662A | Valve | |
| US1409563A | Valveless manifold | |
| CA233470A | Valve | |
| CA233469A | Non-return valve | |
| CA230005A | Valveless manifold |