| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | Canada | 4 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Environmental technology | |
| #3 | Mechanical elements | |
| #4 | Machines | |
| #5 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Combustion residues removal | |
| #2 | Pipes | |
| #3 | Supplying fuel to combustion device | |
| #4 | Air-conditioning | |
| #5 | Unspecified technologies | |
| #6 | Roof coverings | |
| #7 | Domestic stoves for solid fuels |
| # | Name | Total Patents |
|---|---|---|
| #1 | Carr John H | 8 |
| #2 | Pease Richard O | 1 |
| #3 | Truesdell Stanley E | 1 |
| #4 | Carr Mountain John H | 1 |
| #5 | Jacklich John R | 1 |
| #6 | Nicolas Kerimly | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA1142405A | Flue pipe for fireplace stove | |
| US3087408A | Factory-built chimney | |
| US3082677A | Roof ventilator | |
| US3087409A | Vent cowl | |
| US2894537A | Vent pipe | |
| US2910311A | Double wall pipe coupling with locking means | |
| US2857837A | Roof vent structure | |
| US2910308A | Snap-in lug-in-groove type resilient conduit joint | |
| US2959196A | Multiple wall pipe | |
| CA644881A | Locking vent pipe | |
| CA628966A | Method of locking pipe sections together | |
| CA627330A | Vent pipe |