Assignee
PPG IND CANADA LTD
15 granted patents·205 citations·filing 1975–1982
Top patents by PatentIndex Score
15 records- 0186US4290650ASubterranean cavity chimney development for connecting solution mined cavitiesPPG IND CANADA LTD·Filed 1979·Granted Sep 22, 1981·63 cites·13 claims
- 0267US4536418AMethod for treating potash with anticaking agentPPG IND CANADA LTD·Filed 1982·Granted Aug 20, 1985·15 cites·18 claims
- 0352US4385902AProcess for purifying crystalline potassium chloridePPG IND CANADA LTD·Filed 1980·Granted May 31, 1983·13 cites·22 claims
- 0451US4276117AProcess of treating potassium chloride brine by evaporation and crystallizationPPG IND CANADA LTD·Filed 1980·Granted Jun 30, 1981·15 cites·8 claims
- 0551US4224035AMethod of separating salts from solutionPPG IND CANADA LTD·Filed 1978·Granted Sep 23, 1980·13 cites·13 claims
- 0651US4192555AMethod of disposing solid sodium chloride while selectively solution mining potassium chloridePPG IND CANADA LTD·Filed 1978·Granted Mar 11, 1980·23 cites·13 claims
- 0749US4224036AMethod of concentrating salt solutionsPPG IND CANADA LTD·Filed 1978·Granted Sep 23, 1980·12 cites·20 claims
- 0844US4264104ARubble miningPPG IND CANADA LTD·Filed 1979·Granted Apr 28, 1981·15 cites·8 claims
- 0944US4007964APreferential solution mining processPPG IND CANADA LTD·Filed 1975·Granted Feb 15, 1977·14 cites·22 claims
- 1036US4239288ASolution mining method utilizing sub-surface aquiferPPG IND CANADA LTD·Filed 1979·Granted Dec 16, 1980·6 cites·10 claims
- 1133US4386936AProduction of potassium chloride using pond crystallizationPPG IND CANADA LTD·Filed 1979·Granted Jun 7, 1983·5 cites·17 claims
- 1233US4231840AMethod of concentrating an aqueous solution by multiple effect evaporatingPPG IND CANADA LTD·Filed 1979·Granted Nov 4, 1980·5 cites·3 claims
- 1328US4239287ASolution mining potassium chloride from heated subterranean cavitiesPPG IND CANADA LTD·Filed 1979·Granted Dec 16, 1980·3 cites·17 claims
- 1426US4224037AMethod for operating multiple effect evaporatorsPPG IND CANADA LTD·Filed 1978·Granted Sep 23, 1980·1 cites·8 claims
- 1519US4284306AApparatus and method of mining subterranean rubble pilesPPG IND CANADA LTD·Filed 1979·Granted Aug 18, 1981·2 cites·11 claims
Join the waitlist — get patent alerts
Get an alert when PPG IND CANADA LTD files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →