Inventor
Robert P. Dufresne
Inventor
St-Bruno, CA
Overview
Patents· 19 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C25Cprimary
C25CProcesses for the electrolytic production, recovery or refining of metals30%
Y10TTechnical subjects covered by former us classification11%
B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers9%
C25DProcesses for the electrolytic or electrophoretic production of coatings7%
C25BElectrolytic or electrophoretic processes for the production of compounds or non-metals5%
F16BDevices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedges5%
F16MFrames, casings or beds of engines, machines or apparatus, not specific to engines, machines or apparatus provided for elsewhere5%
A61KPreparations for medical, dental or toiletry purposes2%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations2%
B29BPreparation or pretreatment of the material to be shaped2%
PatentTitleYear
10,843,854Techniques for making and using holding straps with hook-and-strap attachment202010,781,968Anchors and methods for anchoring an underground storage tank202010,689,772Components, assemblies and methods for distributing electrical current in an electrolytic cell202010,689,771Configurations and positioning of contact bar segments on a capping board for enhanced current density homogeneity and/or short circuit reduction202010,533,701Anchors and methods for anchoring an underground storage tank202010,233,553Contact bar and capping board for supporting symmetrical electrodes for enhanced electrolytic refining of metals201910,000,857Segmented capping board and contact bar assembly and methods in hydrometallurgical refining20189,234,287'Contact bar and capping board for supporting symmetrical electrodes for enhanced electrolytic refining of metals'20169,228,606'Hook with holding means and method for holding down underground tank with a strap'20169,222,184'Contact bar with multiple support surfaces and insulating capping board'20158,986,521'Contact bar for capping board'20158,870,088'Insulating anti-corrosive rail clamp integrally made of polymeric composition'20148,147,662'Capping board section and assembly with reinforced mating projection'20128,123,917'Contact bar for capping board'20127,582,301'Long-lasting antiviral fusion inhibitor peptide conjugates comprising albumin and human immunodeficiency virus (HIV) peptides'20097,223,324'Capping board with separating walls'20077,204,919'Capping board with at least one sheet of electrically conductive material embedded therein'20075,645,701'Capping board with pultruded filling bars'19974,749,464'Non conductive edge strip for use on an electrolytic metal refining cathode'1988Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1988–2020Based in St-Bruno, CA· patent location history
1997Based in St-Bruno-de-Montarville, CA· patent location history
2007–2016Patents assigned to PULTRUSION TECH INC (9)· patent assignee history
2009Patents assigned to CONJUCHEM BIOTECHNOLOGIES INC (1)· patent assignee history
2009Based in Wellseley, MA, US· patent location history
2012–2016Patents assigned to DUFRESNE ROBERT (3)· patent assignee history
2012–2015Patents assigned to DUFRESNE ROBERT P (3)· patent assignee history
2012–2020Based in Saint-Bruno, CA· patent location history
2015Based in Quebec, CA· patent location history
2018–2020Patents assigned to PULTRUSION TECHNIQUE INC (7)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| PULTRUSION TECH INC | 9 | 2007–2016 |
| PULTRUSION TECHNIQUE INC | 7 | 2018–2020 |
| DUFRESNE ROBERTself | 3 | 2012–2016 |
| DUFRESNE ROBERT Pself | 3 | 2012–2015 |
| CONJUCHEM BIOTECHNOLOGIES INC | 1 | 2009 |
Locations
| Location | Patents | Span |
|---|---|---|
| St-Bruno, CA | 10 | 1988–2020 |
| Saint-Bruno, CA | 6 | 2012–2020 |
| Quebec, CA | 1 | 2015 |
| Wellseley, Massachusetts, US | 1 | 2009 |
| St-Bruno-de-Montarville, CA | 1 | 1997 |