Canplas Industries Ltd.
53Patents
25Active
53Granted
47Portfolio score
Filing activity: May 8, 1990 → Sep 21, 2021 · 3 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6767281B2 | Passive venting device | Mechanical Engineering; Lighting; Heating | 75 | Expired |
| US5591080A | Exhaust vent cover | Mechanical Engineering; Lighting; Heating | 75 | Expired |
| US6155008A | Passive venting device | Mechanical Engineering; Lighting; Heating | 68 | Expired |
| US7774999B2 | Roof vent | Emerging Cross-Sectional Technologies | 53 | Active |
| US5016843A | Pipe clamp | Mechanical Engineering; Lighting; Heating | 50 | Expired |
| USD344449S | C-shaped wire clip | General | 46 | Expired |
| US5578795A | Inlet valve assembly for central vacuum system | Electricity | 29 | Expired |
| US9271618B2 | Handheld vacuum cleaner and docking assembly for connecting to a central vacuum system | Human Necessities | 27 | Active |
| US7219473B2 | Ridge vent apparatus | Fixed Constructions | 27 | Expired |
| US6687926B1 | Waste and overflow drain adaptor device | Fixed Constructions | 26 | Expired |
| US6612924B1 | Passive venting device | Mechanical Engineering; Lighting; Heating | 25 | Expired |
| US6149516A | Soffit vent apparatus | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| USD439009S | Flood light shroud | General | 19 | Expired |
| US9808135B2 | Handheld vacuum cleaner and docking assembly for connecting to a central vacuum system | Human Necessities | 16 | Active |
| US8069621B2 | Ridge vent apparatus | Fixed Constructions | 15 | Active |
| US6520852B2 | Vent for venting a building enclosure | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US9714504B2 | Bathtub drain and overflow kit | Fixed Constructions | 15 | Active |
| US6052839A | Angled water closet flange | Fixed Constructions | 15 | Expired |
| USD431291S | Translucent roof vent | General | 14 | Expired |
| USD468001S1 | Shower drain fitting | General | 13 | Expired |
| US6108858A | Waste receptacle for a vacuum cleaning system | Electricity | 13 | Expired |
| USD355958S | Water closet mounting flange | General | 12 | Expired |
| US6292977A | Vacuum fitting | Human Necessities | 12 | Expired |
| US5664375A | Exterior building product device | Fixed Constructions | 11 | Expired |
| US5448827A | Method of installing an inlet valve assembly for central vacuum system | Emerging Cross-Sectional Technologies | 11 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.