Inventor

Karl-Rudolf Gassen

Inventor

Odenthal, DE

Overview

21→

Patents

1990–2004

Patent span

Chemistry

Primary field (CPC C)

Patents· 21 as inventor

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

C07Cprimary

C07CAcyclic or carbocyclic compounds35%

C07DHeterocyclic compounds23%

A01NPreservation of bodies of humans or animals or plants or parts thereof21%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium5%

D21HPulp compositions5%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry2%

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds2%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds2%

C09CTreatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties2%

C11DDetergent compositions2%

PatentTitleYear

6,716,889'Process for the preparation of strongly basic anion exchangers using ethylene oxide'2004 6,596,864'Stilbene brightener'2003 6,576,687'Wet-strength agent with low DCP content'2003 5,840,902'Process for the preparation of beta-hydroxyalkypicolinium salts'1998 5,463,088'Process for preparing perfluoroalkoxy (alkylthio) benzenes'1995 5,264,632'2,2-difluorocyclopropyl derivatives'1993 5,208,388'2,2-difluorocyclopropyl derivatives'1993 5,183,932'Herbicidal substituted 4-amino-5-alkylthio-1,2,4-triazol-3-ones'1993 5,171,901'Process for the preparation of 1,1,1,3,3,3-hexafluoropropane and 2-chloro-1,1,1,3,3,3-hexafluoropropane'1992 5,169,427'Herbicidal cycloalkyl-substituted thiadiazolyloxyacetamides'1992 5,166,144'O-halogenocyclobutyl s-alkyl (di)thiophosphoric acid ester-amides and their use as agents for combating pests'1992 5,159,111'Fluorocyclopropyl derivative fungicide intermediates'1992 5,124,476'Process for the preparation of .alpha.-fluoroacryloyl derivatives'1992 5,095,147'2,2-difluorocyclopropyl derivatives'1992 5,087,775'Process for the preparation of partially fluorinated alcohols'1992 5,081,283'Fluorocyclopropyl derivative fungicide intermediates'1992 5,075,494'Process for the preparation of .alpha.-fluoroacrylic acid derivatives and new 1,1-difluoro-2-halogenoethyl (halogeno) methyl ketones'1991 5,072,030'Process for the fluorination of acrylic acid and derivatives thereof and novel fluorinated esters of 2,3-difluoropropionic acid'1991 5,047,415'2,2-dihalogenocyclopropyl-hydroxy-ethyltriazoles'1991 5,021,080'Herbicidal substituted 4-amino-5-alkylthio-1,2,4-triazol-3-ones'1991 4,973,583'Pesticidal O-halogenocyclobutyl S-alkyl (di)thiphosph)(on)ates'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–2004Patents assigned to BAYER AG (21)· patent assignee history

1990–1993Based in Odenthal, DE· patent location history

1995–2004Based in Ratingen, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BAYER AG	21	1990–2004

Locations

Location	Patents	Span
Odenthal, DE	16	1990–1993
Ratingen, DE	5	1995–2004