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Inventor

Roger Dutartre

Inventor
Prades le Lez, FR

Overview

2→
Patents
1989–1990
Patent span
Performing operations
Primary field (CPC B)

Patents· 2 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

B01Jprimary
B01JChemical or physical processes, e.g. catalysis or colloid chemistry40%
C10GCracking hydrocarbon oils40%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests20%
PatentTitleYear
4,946,580'Binary zeolitic systems, their synthesis and their utilization'19904,847,224'Binary zeolitic systems, their synthesis and their utilization'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–1990Patents assigned to ELF FRANCE (2)· patent assignee history
1989–1990Based in Prades le Lez, FR· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ELF FRANCE21989–1990
Locations
LocationPatentsSpan
Prades le Lez, FR21989–1990