Jean Chatelain — 6 Patents at Atochem

Jean Chatelain has been granted 6 US patents while listed as an inventor at Atochem. The first was granted in 1981 and the most recent in September 1993. Jean Chatelain ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Jean Chatelain in Val-de-Reuil, FR.

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #	Title	Co-Inventors	Date
5243007	Polymers based on vinyl chloride prepared by mass polymerization	Yves Legrand	1993-09-07
4868255	Process for preparing vinyl chloride polymers by mass polymerization with spherical vessel	Yves Legrand	1989-09-19
4665330	Step motor particularly for electronic timepieces	—	1987-05-12
4518884	Step motor particularly for electronic timepieces	—	1985-05-21
4429706	Safety device for gas-fired heating apparatus	Bernard Weichlein, Denis Gaihier	1984-02-07
4299935	Process for bulk polymerization	—	1981-11-10

Jean Chatelain — 6 Patents

Issued Patents All Time

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