Assignee
SHELL CANADA LTD
CA·6 granted patents·1 pending application·255 citations·filing 1975–2004
Top patents by PatentIndex Score
7 records- 0191US4035282AProcess for recovery of bitumen from a bituminous frothSHELL CANADA LTD·Filed 1975·Granted Jul 12, 1977·144 cites·9 claims
- 0289US6824600B2Paving binders and manufacturing methodsSHELL CANADA LTD·Filed 2002·Granted Nov 30, 2004·29 cites·49 claims
- 0385US6863724B2Sulfur additives for paving binders and manufacturing methodsSHELL CANADA LTD·Filed 2002·Granted Mar 8, 2005·23 cites·20 claims
- 0474US4876004ATopological separatorSHELL CANADA LTD·Filed 1988·Granted Oct 24, 1989·34 cites·2 claims
- 0550US4064942AAquifer-plugging steam soak for layered reservoirSHELL CANADA LTD·Filed 1976·Granted Dec 27, 1977·16 cites·7 claims
- 0647US2005051056A1Paving binders and manufacturing methodsSHELL CANADA LTD·Filed 2004·Application pending·0 cites
- 0727US4476603ADrainage seal for sewage systemSHELL CANADA LTD·Filed 1983·Granted Oct 16, 1984·9 cites·8 claims
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →