Assignee
SWANSON ROLLAN
13 granted patents·136 citations·filing 1974–1982
Top patents by PatentIndex Score
13 records- 0178US3933475AExtraction of copper from copper sulfidesSWANSON ROLLAN·Filed 1974·Granted Jan 20, 1976·17 cites·11 claims
- 0277US4078917AExtraction of antimony trioxide from antimony sulfide oreSWANSON ROLLAN·Filed 1976·Granted Mar 14, 1978·19 cites·13 claims
- 0372US4018572ADesulfurization of fossil fuelsSWANSON ROLLAN·Filed 1975·Granted Apr 19, 1977·19 cites·11 claims
- 0460US4366044AProcess for conversion of coal to hydrocarbon and other valuesSWANSON ROLLAN·Filed 1981·Granted Dec 28, 1982·6 cites·51 claims
- 0558US4454017AProcess for recovering hydrocarbon and other values from shale oil rockSWANSON ROLLAN·Filed 1982·Granted Jun 12, 1984·13 cites·27 claims
- 0657US4160721ADe-sulfurization of petroleum residues using melt of alkali metal sulfide hydrates or hydroxide hydratesSWANSON ROLLAN·Filed 1978·Granted Jul 10, 1979·11 cites·11 claims
- 0757US3957503AExtraction of zinc and lead from their sulfidesSWANSON ROLLAN·Filed 1974·Granted May 18, 1976·6 cites·11 claims
- 0856US4210526ADesulfurizing fossil fuelsSWANSON ROLLAN·Filed 1978·Granted Jul 1, 1980·11 cites·9 claims
- 0955US4057422AOre treatment processSWANSON ROLLAN·Filed 1976·Granted Nov 8, 1977·7 cites·6 claims
- 1054US4248695ADesulfurizing a fuel with alkanol-alkali metal hydrosulfide solutionSWANSON ROLLAN·Filed 1979·Granted Feb 3, 1981·10 cites·10 claims
- 1153US4248693AProcess for recovering hydrocarbons and other values from tar sandsSWANSON ROLLAN·Filed 1979·Granted Feb 3, 1981·9 cites·14 claims
- 1244US4366045AProcess for conversion of coal to gaseous hydrocarbonsSWANSON ROLLAN·Filed 1981·Granted Dec 28, 1982·5 cites·34 claims
- 1336US4441923AIntegrated process using non-stoichiometric sulfides or oxides of potassium for making less active metals and hydrocarbonsSWANSON ROLLAN·Filed 1982·Granted Apr 10, 1984·3 cites·13 claims
Join the waitlist — get patent alerts
Get an alert when SWANSON ROLLAN 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 →