Assignee
STARCK HERMANN C FA
DE·20 granted patents·687 citations·filing 1976–1991
Top patents by PatentIndex Score
20 records- 0196US4483819AProduction of highly capacitive agglomerated valve metal powder and valve metal electrodes for the production of electrolytic capacitorsSTARCK HERMANN C FA·Filed 1982·Granted Nov 20, 1984·157 cites·6 claims
- 0295US4231790AProcess for the preparation of tantalum and niobium powders of improved efficiencySTARCK HERMANN C FA·Filed 1978·Granted Nov 4, 1980·52 cites·21 claims
- 0393US4537641AProcess for producing valve-metal anodes for electrolytic capacitorsSTARCK HERMANN C FA·Filed 1984·Granted Aug 27, 1985·77 cites·10 claims
- 0491US4347084AElectrodes of sintered tantalum powder of fine grain size and process of productionSTARCK HERMANN C FA·Filed 1980·Granted Aug 31, 1982·30 cites·4 claims
- 0587US4512805AValve metal powder doped with boronSTARCK HERMANN C FA·Filed 1984·Granted Apr 23, 1985·47 cites·18 claims
- 0686US4446116AProcess for recovering niobium and/or tantalum compounds from such ores further containing complexes of uranium, thorium, titanium and/or rare earth metalsSTARCK HERMANN C FA·Filed 1982·Granted May 1, 1984·32 cites·5 claims
- 0785US4915733AAgglomerated metal composite powdersSTARCK HERMANN C FA·Filed 1989·Granted Apr 10, 1990·62 cites·3 claims
- 0883US4569693AProcess for improving the flowability and increasing the bulk density of high-surface area valve metal powdersSTARCK HERMANN C FA·Filed 1983·Granted Feb 11, 1986·42 cites·18 claims
- 0979US5141821AHigh temperature mcral(y) composite material containing carbide particle inclusionsSTARCK HERMANN C FA·Filed 1990·Granted Aug 25, 1992·32 cites·2 claims
- 1077US4451438AProcess for recovering niobium and/or tantalum metal compounds from such ores further containing complexes of uranium, thorium, titanium and/or rare earth metalsSTARCK HERMANN C FA·Filed 1982·Granted May 29, 1984·27 cites·11 claims
- 1177US4309389AProcess for the recovery of hydrofluoric acid and depositable residues during treatment of niobium- and/or tantalum-containing raw materialsSTARCK HERMANN C FA·Filed 1980·Granted Jan 5, 1982·19 cites·6 claims
- 1270US4548672AProcess for treating the surface of valve metals with chalcogensSTARCK HERMANN C FA·Filed 1984·Granted Oct 22, 1985·23 cites·9 claims
- 1365US4384885AProcess for the recovery of metals from catalystsSTARCK HERMANN C FA·Filed 1980·Granted May 24, 1983·14 cites·7 claims
- 1461US5194232AProcess for the preparation of tantalum/niobium hydroxides and oxides with a low fluoride contentSTARCK HERMANN C FA·Filed 1991·Granted Mar 16, 1993·18 cites·10 claims
- 1554US5037705AOxygen-containing molybdenum metal powder and processes for its preparationSTARCK HERMANN C FA·Filed 1990·Granted Aug 6, 1991·12 cites·4 claims
- 1652US4671932ANickel-based hard alloySTARCK HERMANN C FA·Filed 1984·Granted Jun 9, 1987·12 cites·1 claims
- 1750US5194073ASintered composite abrasive materials, a process for its production and its useSTARCK HERMANN C FA·Filed 1991·Granted Mar 16, 1993·17 cites·11 claims
- 1850US4041138AProcess for the preparation of crystalline potassium tantalum fluorideSTARCK HERMANN C FA·Filed 1976·Granted Aug 9, 1977·6 cites·12 claims
- 1941US4349515ATungsten production from raw materials containing phosphorus impuritiesSTARCK HERMANN C FA·Filed 1981·Granted Sep 14, 1982·3 cites·10 claims
- 2030US5181938ACobalt-bound diamond tools, a process for their manufacture and their useSTARCK HERMANN C FA·Filed 1991·Granted Jan 26, 1993·5 cites·9 claims
Join the waitlist — get patent alerts
Get an alert when STARCK HERMANN C FA 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 →