| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 | |
| #2 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Machines | |
| #3 | Engines, pumps and turbines | |
| #4 | Chemical engineering | |
| #5 | Transport | |
| #6 | Agriculture | |
| #7 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Non-positive-displacement pumps | |
| #2 | Animal care | |
| #3 | Climate change mitigation in wastewater treatment | |
| #4 | Unspecified technologies | |
| #5 | Unspecified technologies | |
| #6 | Water treatment | |
| #7 | Separation | |
| #8 | Swimming pools | |
| #9 | Ships | |
| #10 | Aeroplanes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Daniel William H | 12 |
| Publication | Filing date | Title |
|---|---|---|
| US5104541A | Oil-water separator | |
| US5102066A | Vertical take-off and landing aircraft | |
| US5137424A | Pump unit | |
| US4072612A | Aerator for bodies of water | |
| US4084417A | Simulated deadlock for doors | |
| US3261297A | Pump | |
| US3147736A | Animal shelter | |
| US3204768A | Sewage treatment apparatus | |
| US2987098A | Repair device | |
| US1067409A | Water cut-off. | |
| CA109746A | Fireplace | |
| US858373A | Attachment for fireplaces. |