| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 14 | |
| #2 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Stewart Thomas Mcavity | 15 |
| Publication | Filing date | Title |
|---|---|---|
| CA171764A | Valve | |
| CA141783A | Hydrant | |
| CA143931A | Valve | |
| CA143144A | Ball cock | |
| CA138721A | Valve | |
| US1132886A | Valve. | |
| CA113398A | Hydrant | |
| CA96287A | Clean-out for pipe traps | |
| CA86559A | Trap | |
| CA86558A | Pipe coupling | |
| CA331062A | Train pipe coupler | |
| CA326113A | Bath tub | |
| CA223588A | Method of casting metallic articles | |
| CA308830A | Pipe making machine | |
| CA286243A | Pipe joint |