LexDanaLexDanabeta
Inventor

Joachim W. Wolfram

Inventor
Baton Rouge, LA, US

Overview

8→
Patents
1984–1992
Patent span
Chemistry
Primary field (CPC C)

Patents· 8 as inventor

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

C07Cprimary
C07CAcyclic or carbocyclic compounds88%
C07DHeterocyclic compounds13%
PatentTitleYear
5,120,901'Olefin purification process'19924,871,874'Process for producing dienes'19894,599,435'Preparation of 6-carboxy-3,4-dihydro-2H-pyran'19864,544,505'Preparation of halo-.alpha.-keto-carboxylic acids'19854,532,345'Process for preparing aryloxyalkylpyruvic acids'19854,492,798'Process for preparing arylalkylpyruvic acids'19854,481,368'Process for preparing .alpha.-keto-carboxylic acids from acyl halides'19844,481,369'Preparation of .alpha.-keto-carboxylic acids from acyl halides'1984

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984–1992Patents assigned to ETHYL CORP (8)· patent assignee history
1984–1986Based in Baton Rouge, LA, US· patent location history
1989–1992Based in Houston, TX, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ETHYL CORP81984–1992
Locations
LocationPatentsSpan
Baton Rouge, LA, US61984–1986
Houston, Texas, US21989–1992