| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 14 | |
| #2 | United States | 12 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | Hong Kong | 1 | |
| #5 | Singapore | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Furniture and games | |
| #4 | Environmental technology | |
| #5 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Water-closets with flushing devices | |
| #2 | Sanitary equipment | |
| #3 | Shaping of plastics | |
| #4 | Climate change adaptation technologies | |
| #5 | Unspecified technologies | |
| #6 | Pumps | |
| #7 | Certain plastics |
| # | Name | Total Patents |
|---|---|---|
| #1 | Stewart John M | 23 |
| #2 | Fleming David Charles Robert | 6 |
| #3 | Hewson Clifford B | 5 |
| #4 | Hewson Clifford Bruce | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US5906011A | Dual foot pedal-operated flush toilet | |
| US5933882A | Lever-actuated flush toilet | |
| US5815852A | Toilet with internal rinse mechanism | |
| CA2003103A1 | Padded toilet seat lid | |
| US4817215A | Toilets | |
| CA1273752A | Flush toilet | |
| US4710988A | Flush toilet | |
| US4764994A | Portable toilet | |
| CA1285708C | Portable toilet | |
| US4603443A | Toilet with sight gauge | |
| CA1239002A | Toilet with sight gauge | |
| CA1188456A | Manufacture of toilets | |
| CA1157207A | Portable toilet | |
| CA1156801A | Portable toilet | |
| US4439875A | Toilet | |
| US4091475A | Portable toilets | |
| CA1048705A | Portable toilets | |
| CA1034427A | Diaphragm pump |