Inventor
Cooper H. Langford
Inventor
Calgary, CA
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B01Jprimary
B01JChemical or physical processes, e.g. catalysis or colloid chemistry33%
C02FTreatment of water, waste water, sewage, or sludge25%
A62DChemical means for extinguishing fires or for combating or protecting against harmful chemical agents17%
A61LMethods or apparatus for sterilising materials or objects in general8%
Y02WClimate change mitigation technologies related to wastewater treatment or waste management8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
PatentTitleYear
6,736,976'Fluid treatment process'20045,981,426'Photocatalyst having an x-ray diffraction pattern which is substanially free of characteristic reflections associated with crystalline TiO.sub.2'19995,686,372'Photocatalyst with modified alkyl silicate ester support and process for production thereof'19975,118,429'Ambient temperature destruction of PCB wastes'19924,980,039'Microwave-mediated degradation of PCB wastes'19904,806,514'Composite photocatalyst for refractory waste degradation'1989Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1989–1990Patents assigned to CANADIAN PATENTS DEV (2)· patent assignee history
1989Based in Côteau-du-Lac, CA· patent location history
1990Based in Ste-Anne-de-Bellevue, CA· patent location history
1992Patents assigned to UNIV CONCORDIA (1)· patent assignee history
1992Based in Montreal, CA· patent location history
1997–1999Patents assigned to UNIV TECHNOLOGIES INT (2)· patent assignee history
1997Based in Alberta, CA· patent location history
1999–2004Based in Calgary, CA· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CANADIAN PATENTS DEV | 2 | 1989–1990 |
| UNIV TECHNOLOGIES INT | 2 | 1997–1999 |
| UNIV CONCORDIA | 1 | 1992 |
Locations
| Location | Patents | Span |
|---|---|---|
| Calgary, CA | 2 | 1999–2004 |
| Alberta, CA | 1 | 1997 |
| Montreal, CA | 1 | 1992 |
| Ste-Anne-de-Bellevue, CA | 1 | 1990 |
| Côteau-du-Lac, CA | 1 | 1989 |