Inventor

Rudi Widder

Inventor

Leimen, DE

Overview

1976–2001

Patent span

Chemistry

Primary field (CPC C)

Patents· 17 as inventor

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

C07Cprimary

C07CAcyclic or carbocyclic compounds28%

C07DHeterocyclic compounds16%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests12%

C11DDetergent compositions8%

D06PDyeing or printing textiles8%

A61KPreparations for medical, dental or toiletry purposes4%

A61QSpecific use of cosmetics or similar toiletry preparations4%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry4%

C07HSugars4%

C09DCoating compositions, e.g. paints, varnishes or lacquers4%

PatentTitleYear

6,235,218'Process for preparing N-alkyl ammonium acetonitrile compounds'2001 5,763,639'Process for producing quarternary glycine nitriles'1998 5,611,906'Preparation of N-allyl compounds'1997 5,606,067'Preparation of N-allyl compounds'1997 4,705,649'Preparation of acyloxybenzenesulfonic acids and their alkali metal and alkaline earth metal salts'1987 4,701,269'Waterproofing leather and skins'1987 4,695,412'Preparation of acyloxybenzenesulfonic acids and their alkali metal and alkaline earth metal salts'1987 4,693,848'Preparation of alkali metal and alkaline earth metal salts of acyloxybenzenesulfonic acids'1987 4,588,531'Preparation of alkali metal and alkaline earth metal salts of acyloxybenzenesulfonic acids'1986 4,350,531'Printing pastes with foam inhibitors'1982 4,349,669'Purification of alkylglycosides by distillative removal of unconverted alcohols'1982 4,344,862'Reaction products of sulfonamido-carboxylic acids or carboxamido-carboxylic acids with alkanolamines, and their use as low-foaming corrosion inhibitors'1982 4,321,412'Preparation of aromatic aldehydes by the Sommelet reaction'1982 4,242,187'Preparation of alkanes substituted by chlorine atoms and/or sulfochloride groups'1980 4,229,174'Dispersant for textile dyeing and optical brightening'1980 4,009,139'Opacifying agents'1977 3,989,456'Dyeing of polyester fibers'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1998Patents assigned to BASF AG (16)· patent assignee history

1976–1998Based in Leimen, DE· patent location history

2001Patents assigned to CLOROX CO (1)· patent assignee history

2001Based in Leiheim, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BASF AG	16	1976–1998
CLOROX CO	1	2001

Locations

Location	Patents	Span
Leimen, DE	16	1976–1998
Leiheim, DE	1	2001