Inventor · disambiguated record
Roland Bachelard
Also filed as: BACHELARD ROLAND
21 granted patents·304 citations·filing 1975–1996
96Inventor score
Top patents by PatentIndex Score
21 records- 0193US4784839AMethod of making metal carbide and nitride powdersATOCHEM·Filed 1987·Granted Nov 15, 1988·54 cites·22 claims
- 0292US4871479AProcess for producing sintered mixed oxides which are soluble in nitric acid from solutions of nitratesCOMURHEX·Filed 1988·Granted Oct 3, 1989·56 cites·16 claims
- 0381US4851203AMetal carbide and nitride powdersATOCHEM·Filed 1987·Granted Jul 25, 1989·24 cites·17 claims
- 0480US5972827ACatalytic oxychlorination of hydrocarbons to produce chlorocarbonsATOCHEM·Filed 1993·Granted Oct 26, 1999·15 cites·12 claims
- 0572US4687601AProcess for the preparation of pulverulent metallic oxides from metallic nitratesCOMURHEX·Filed 1984·Granted Aug 18, 1987·15 cites·15 claims
- 0668US4486402AProcess for the preparation of high purity aluminas starting from impure aluminum chloride solutionsUGINE KUHLMANN·Filed 1982·Granted Dec 4, 1984·15 cites·15 claims
- 0763US5612267ACeramic preforms comprising monocrystalline hexagonal platelets of α-aATOCHEM·Filed 1995·Granted Mar 18, 1997·15 cites·18 claims
- 0863US5296085AMacrocrystalline α-alumina hexagonal plateletsATOCHEM·Filed 1992·Granted Mar 22, 1994·15 cites·26 claims
- 0962US5688730AOptically transparent gamma-aluminum oxynitride powders and ceramic articles shaped therefromATOCHEM ELF SA·Filed 1996·Granted Nov 18, 1997·24 cites·26 claims
- 1062US4151000AAnhydrite binder and methodUGINE KUHLMANN·Filed 1978·Granted Apr 24, 1979·10 cites·7 claims
- 1155US4585634AProcess for the production of uranium trioxide having a large specific surface from hydrated uranyl nitrateCOMURHEX·Filed 1983·Granted Apr 29, 1986·8 cites·5 claims
- 1253US3963824AProcess for extracting chromium from chromium oresUGINE KUHLMANN·Filed 1975·Granted Jun 15, 1976·7 cites·9 claims
- 1351US4532121AProcess for the preparation of finely divided aluminas or alumina-magnesia spinels having homogeneous pore structureUGINE KUHLMANN·Filed 1984·Granted Jul 30, 1985·7 cites·18 claims
- 1449US5243111ACatalytic oxychlorination of hydrocarbons to produce chlorocarbonsATOCHEM·Filed 1992·Granted Sep 7, 1993·3 cites·16 claims
- 1548US4377566ANovel process for the preparation of high purity alumina from ammonium alumUGINE KUHLMANN·Filed 1981·Granted Mar 22, 1983·6 cites·11 claims
- 1646US5378666AProduction of whisker-free Si3 N4 particulates by carbonitriding SiO2ATOCHEM ELF SA·Filed 1992·Granted Jan 3, 1995·8 cites·14 claims
- 1737US5817588ACeramic preforms comprising monocrystalline hexagonal platelets of alpha-aluminaATOCHEM·Filed 1995·Granted Oct 6, 1998·4 cites·13 claims
- 1835US5538705ACarbonitriding of alumina to produce aluminum nitrideATOCHEM ELF SA·Filed 1994·Granted Jul 23, 1996·4 cites·12 claims
- 1934US5662875AContinuous process for the preparation of silicon nitride by carbonitriding and silicon nitride thereby obtainedATOCHEM ELF SA·Filed 1996·Granted Sep 2, 1997·7 cites·19 claims
- 2034US5525321ACarbonitriding of alumina to produce aluminum nitrideATOCHEM ELF SA·Filed 1994·Granted Jun 11, 1996·4 cites·16 claims
- 2130US5674465AContinuous process for the preparation of aluminum nitride by the carbonitriding of aluminaATOCHEM ELF SA·Filed 1996·Granted Oct 7, 1997·3 cites·13 claims
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