Inventor

Friedrich Linhart

Inventor

Heidelberg, DE

Overview

38→

Patents

1976–2012

Patent span

Chemistry

Primary field (CPC C)

Patents· 38 as inventor

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

D21Hprimary

D21HPulp compositions37%

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds13%

C07DHeterocyclic compounds11%

A01NPreservation of bodies of humans or animals or plants or parts thereof6%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds6%

C02FTreatment of water, waste water, sewage, or sludge5%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%

B41MPrinting, duplicating, marking, or copying processes2%

C07CAcyclic or carbocyclic compounds2%

C08BPolysaccharides2%

PatentTitleYear

8,133,543'Method for improving printability on paper or paper products with the aid of ink-jet printing method'2012 7,641,765'Method for production of coated paper with extreme whiteness'2010 7,604,713'Method for producing creped paper'2009 6,969,444'Paper coating slip containing n-vinylformamide'2005 6,673,206'Method of producing paper, paperboard and cardboard'2004 6,303,002'Method for producing paper, pulpboard and cardboard'2001 6,190,503'Process for cleaning wastewater and recirculating water in paper production, de-inking and bleaching of pulp'2001 6,132,558'Process for producing paper and cardboard'2000 5,851,300'Cationic modification of starch and use of the cationically modified starch'1998 5,744,001'Aqueous pigment slurries for production of filler-containing paper'1998 5,695,610'Aqueous pigment slurries and their use in the production of filler-containing paper'1997 5,641,855'Water-soluble condensation products of amino-containing compounds and crosslinkers, preparation thereof and use thereof'1997 5,630,907'Use of hydrolyzed copolymers of N-vinylcarboxamides and monoethylenically unsaturated carboxylic acids in papermaking'1997 5,578,678'Graft polymers of natural substances containing saccharide structures or derivatives thereof and ethylenically unsaturated compounds and their use'1996 5,543,459'Graft polymers of natural substances containing saccharide structures or derivatives thereof and ethylenically unsaturated compounds and their use'1996 5,536,370'Condensates of polyalkylenepolyamines, their preparation and their use in papermaking'1996 5,334,287'Graft polymers of natural substances containing saccharide structures or derivatives thereof and ethylenically unsaturated compounds and their use'1994 5,145,559'Production of paper, board and cardboard'1992 5,126,395'Preparation of stable water-in-oil emulsions of hydrolyzed polymers of N-vinylamides'1992 5,098,521'Production of paper, board and cardboard from paper stocks containing foreign materials'1992 5,046,853'Measuring the degree of dispersion in flowing suspensions'1991 4,784,724'Making paper which has a high dry strength'1988 4,772,359'Production of paper, board and cardboard'1988 4,749,444'Production of paper and cardboard'1988 4,623,699'Preparation of linear, basic polymer powders'1986 4,465,555'Water-soluble polymers of di-C.sub.1 -C.sub.3 -alkylaminoneopentyl (meth)acrylates, and their use as retention agents, drainage agents and flocculants in papermaking'1984 4,450,045'Preparation of water-soluble, nitrogen-containing condensates and their use in papermaking'1984 4,425,238'Removal of anionic compounds from water'1984 4,421,602'Linear basic polymers, their preparation and their use'1983 4,321,395'Preparation of acetanilides'1982 4,315,017'Triazole derivatives'1982 4,260,562'Preparation of O,N-disubstituted hydroxylamines'1981 4,256,754'Insecticidal agents'1981 4,240,973'N-Cyclohexyl-N-methoxyacetoacetamide'1980 4,207,243'Preparation of 2,5-dimethylfuran-3-carboxylic acid alkyl esters'1980 4,200,743'Preparation of 1-cyano-2,1,3-benzothiadiazinones'1980 4,098,810'N-(fluorodichloromethylthio)-benzanilides'1978 3,993,772'Certain N-methoxy-N-cycloalkyl-2-methyl-3-furancarboxamides and fungicidal method using same'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–2012Patents assigned to BASF AG (38)· patent assignee history

1976–1978Based in Ludwigshafen, DE· patent location history

1980–2012Based in Heidelberg, DE· patent location history

1996Based in Weinheim, DE· patent location history

2012Patents assigned to BOHLMANN KLAUS (1)· patent assignee history

2012Patents assigned to HOPF ANDREAS (1)· patent assignee history

2012Patents assigned to LINHART FRIEDRICH (1)· patent assignee history

2012Patents assigned to MULDER RUDI (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BASF AG	38	1976–2012
BOHLMANN KLAUS	1	2012
HOPF ANDREAS	1	2012
LINHART FRIEDRICHself	1	2012
MULDER RUDI	1	2012

Locations

Location	Patents	Span
Heidelberg, DE	35	1980–2012
Ludwigshafen, DE	2	1976–1978
Weinheim, DE	1	1996