| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 7 | |
| #2 | United States | 5 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Mechanical elements | |
| #3 | Agriculture |
| # | Technology | |
|---|---|---|
| #1 | Pipes | |
| #2 | Unspecified technologies | |
| #3 | Unspecified technologies | |
| #4 | Horticulture | |
| #5 | Spraying devices | |
| #6 | Venting or aerating devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Clements Lloyd W | 12 |
| Publication | Filing date | Title |
|---|---|---|
| CA1141800A | Irrigation sprinklers | |
| US4333610A | Grooved nozzle irrigation sprinkler | |
| CA1137140A | Grooved nozzle irrigation sprinkler | |
| US4190232A | Irrigation pipe gate valve | |
| US4295610A | Irrigation sprinklers | |
| CA1088843A | Irrigation drain valve | |
| CA1081484A | Irrigation pipe gate valve | |
| US4139223A | Irrigation pipe coupler | |
| US4037859A | Irrigation pipe joint lock |