Inventor

Larry R. Krepski

Inventor

White Bear Lake, MN, US

Overview

1985–2021

Patent span

Chemistry

Primary field (CPC C)

Patents· 122 as inventor

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

C08Fprimary

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds15%

C08LCompositions of macromolecular compounds8%

C09JAdhesives8%

C07CAcyclic or carbocyclic compounds7%

A61KPreparations for medical, dental or toiletry purposes6%

C07DHeterocyclic compounds6%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients6%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds5%

C09DCoating compositions, e.g. paints, varnishes or lacquers5%

Y10TTechnical subjects covered by former us classification5%

PatentTitleYear

11,111,320Addition-fragmentation oligomers2021 10,479,848Addition-fragmentation oligomers2019 10,370,322Addition-fragmentation agents2019 10,195,119High refractive index addition-fragmentation agents2019 9,907,733'Dental compositions comprising addition-fragmentation agents'2018 9,890,304'Liquid optical adhesive compositions'2018 9,765,071'Substituted imidazo ring systems and methods'2017 9,758,478'Allyl disulfide-containing addition-fragmentation oligomers'2017 9,683,145'Pressure-sensitive adhesives with onium-epoxy crosslinking system'2017 9,675,529'Dental composition containing high refractive index monomers'2017 9,532,929'Trithiocarbonate-containing addition-fragmentation agents'2017 9,463,146'Addition-fragmentation oligomers'2016 9,458,327'Polymerizable ionic liquid comprising multifunctional cation and antistatic coatings'2016 9,434,866'Adhesives comprising epoxy-acid crosslinked groups and methods'2016 9,414,996'Dental compositions comprising addition-fragmentation agents'2016 9,410,030'Addition-fragmentation agents'2016 9,403,966'Addition-fragmentation agents'2016 9,328,110'Substituted imidazo ring systems and methods'2016 9,320,685'Dental compositions comprising ethylenically unsaturated addition-fragmentation agent'2016 9,260,638'Pressure-sensitive adhesives with triazine-epoxy crosslinking system'2016 9,243,172'Pressure-sensitive adhesives with mixed photocrosslinking system'2016 9,238,702'Photobase generators as latent ionic crosslinkers for acrylic pressure-sensitive adhesives'2016 9,217,099'Pressure-sensitive adhesives with acid-epoxy crosslinking systems'2015 9,217,050'Crosslinkable composition comprising photobase generators'2015 9,168,206'Curable dental compositions and articles comprising polymerizable ionic liquids'2015 9,127,101'Compositions and articles comprising polymerizable ionic liquid mixture, and methods of curing'2015 9,056,043'Dental compositions comprising ethylenically unsaturated addition-fragmentation agent'2015 8,980,967'Pressure-sensitive adhesives with mixed photocrosslinking system'2015 8,980,969'Addition-fragmentation agents'2015 8,853,338'Curable dental compositions and articles comprising polymerizable ionic liquids'2014 8,816,029'Compositions and articles comprising polymerizable ionic liquid mixture, and methods of curing'2014 8,785,517'Pressure-sensitive adhesives with onium-epdxy crosslinking system'2014 8,778,963'Hydroxylamine and oxime substituted imidazoquinolines, imidazopyridines, and imidazonaphthyridines'2014 8,742,047'Polymerizable ionic liquid comprising multifunctional cation and antistatic coatings'2014 8,697,873'Amide substituted imidazopyridines, imidazoquinolines, and imidazonaphthyridines'2014 8,691,837'Substituted imidazo ring systems and methods'2014 8,597,784'Radiation curable poly(isobutylene) adhesive copolymers'2013 8,552,130'Polymerizable ionic liquid comprising aromatic carboxylate anion'2013 8,524,836'Crosslinkable acrylate adhesive polymer composition'2013 8,507,612'Aziridine crosslinking agents for acrylic adhesives'2013 8,404,778'Crosslinkable syrup copolymers with aminoalkyl (meth)acryloyl solvent monomers'2013 8,383,721'Polymerizable ionic liquid compositions'2013 8,349,962'Acrylic pressure-sensitive adhesives with acylaziridine crosslinking agents'2013 8,329,851'Functional polymer with a pendant color changing indicator'2012 8,263,711'(Meth)acryloyl-aziridine crosslinking agents and adhesive polymers'2012 8,222,340'Crosslinkable syrup copolymers with aminoalkyl (meth)acryloyl solvent monomers'2012 8,148,471'Acrylic pressure-sensitive adhesives with aziridinyl-epoxy crosslinking system'2012 8,088,788'Substituted fused[1,2] imidazo[4,5-c] ring compounds and methods'2012 8,067,504'Acrylic pressure-sensitive adhesives with acylaziridine crosslinking agents'2011 7,838,110'Aziridine-functional photoactive crosslinking compounds'2010 7,820,785'Solid phase synthesis supports and methods'2010 7,714,076'Acrylic pressure-sensitive adhesives with aziridine crosslinking agents'2010 7,700,082'Silylated polyurethane-urea compositions for use in cosmetic applications'2010 7,652,095'Pressure-sensitive adhesive containing aziridinyl silanes'2010 7,652,103'Acrylic pressure-sensitive adhesives with aziridine crosslinking agents'2010 7,579,359'1-alkoxy 1H-imidazo ring systems and methods'2009 7,557,177'Ring-opened azlactone initiators for atom transfer radical polymerization'2009 7,368,487'Aqueous ink jet printable compositions'2008 7,294,742'Ring-opened azlactone initiators for atom transfer radical polymerization'2007 7,166,696'Solid phase synthesis supports and methods'2007 6,992,217'Ring-opened azlactone initiators for atom transfer radical polymerization'2006 6,991,851'Dry-peelable temporary protective coatings'2006 6,969,749'Azlactone initiators for atom transfer radical polymerization'2005 6,894,133'Azlactone initiators for atom transfer radical polymerization'2005 6,787,635'Solid phase synthesis supports and methods'2004 6,692,823'Microfibrillated articles comprising hydrophillic component'2004 6,416,838'Compositions and articles made therefrom'2002 6,245,922'Chromophoric photocrosslinking compound'2001 6,139,594'Abrasive article with tie coat and method'2000 5,993,935'Covalently reactive particles incorporated in a continous porous matrix'1999 5,951,749'Water-based pigmented inks'1999 5,929,160'Method for reducing water uptake in silyl terminated sulfopoly(ester-urethanes)'1999 5,840,106'Water-based pigmented inks'1998 5,747,626'Silyl terminated sulfopoly(ester-urethane pavement marking compositions'1998 5,714,632'Azlactone-based surfactants'1998 5,705,676'Chromogenic leuco redox-dye-releasing compounds for photothermographic elements'1998 5,696,289'Blocked leuco dyes for photothermographic elements'1997 5,492,804'Chromogenic leuco redox-dye-releasing compounds for photothermographic elements'1996 5,492,805'Blocked leuco dyes for photothermographic elements'1996 5,403,902'Polymeric supports'1995 5,336,742'Polymeric supports'1994 RE034652'Fluorinated, acrylamide-functional monomers'1994 5,314,975'Fluorinated acrylamide silane monomers and polymers'1994 5,300,420'Stabilizers for photothermography with nitrile blocking groups'1994 5,292,514'Azlactone-functional substrates, corneal prostheses, and manufacture and use thereof'1994 5,292,840'Polymeric supports'1994 5,268,473'Azlactone Michael adducts'1993 5,239,013'Nonlinear optically active polymers'1993 RE034348'Fluorinated polymers derived from acrylamide-functional monomers'1993 5,216,084'Nonlinear optically active polymers'1993 5,210,248'Fluorinated acrylamide silane monomers and polymers'1993 5,194,623'Azlactone based photographic reagents'1993 5,175,081'Post-processsing stabilization of photothermographic emulsions'1992 5,158,866'Post-processing stabilization of photothermographic emulsions with amido compounds'1992 5,157,108'Thermally sensitive linkages'1992 5,149,806'Azlactone Michael adducts'1992 5,091,489'Oligo (2-alkenyl azlactones)'1992 5,081,197'Oligo(2-alkenyl azlactones)'1992 5,045,615'Fluorinated polymers derived from acrylamide-functional monomers'1991 4,971,424'Radiation curable cladding compositions'1990 4,952,640'Nonlinear optically active polymers'1990 4,946,962'Bis(thiazolinethiones)'1990 4,931,582'Fluorinated, acrylamide-functional monomers'1990 4,918,231'Process for the production of 1,2-amino alcohols'1990 4,906,792'O-hydroxyalkylation of 1,1-dihydroperfluorinated alcohols'1990 4,898,923'Polypyridinium copolymer'1990 4,874,822'Process for the acrylamidoacylation of alcohols'1989 4,871,824'Variably crosslinked polymeric supports'1989 4,852,969'Silyl 2-amidoacetate and silyl 3-amidopropionate compositions and optical fiber made therefrom'1989 4,841,021'Polypyridinium'1989 RE032952'Method of preparing N-acryloyl-.alpha.-amino acids'1989 4,816,554'Poly(amido methyl-benzazole)'1989 4,785,070'Imidazolinone-containing copolymer'1988 4,777,217'Methacrylamide functional polymers and method'1988 4,740,568'Triazolinethione-containing polymer'1988 4,737,560'Polymer beads'1988 4,694,103'Method of preparing N-acryloyl-.alpha.-amino acids'1987 4,667,012'Imidazolinone-containing polymer and copolymer'1987 4,659,801'Thiazolinethione-containing polymer'1987 4,624,995'Triazolinethione-containing polymer'1986 4,556,723'Process for the production of acyloins'1985 4,524,221'Process for the production of acyloins'1985

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985–1999Patents assigned to MINNESOTA MINING & MFG (49)· patent assignee history

1985–2021Based in White Bear Lake, MN, US· patent location history

1988–2012Based in St. Paul, MN, US· patent location history

1999–2021Patents assigned to 3M INNOVATIVE PROPERTIES CO (71)· patent assignee history

2011–2018Patents assigned to KREPSKI LARRY R (23)· patent assignee history

2011–2016Patents assigned to GADDAM BABU N (11)· patent assignee history

2013–2018Patents assigned to OXMAN JOEL D (8)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
3M INNOVATIVE PROPERTIES CO	71	1999–2021
MINNESOTA MINING & MFG	49	1985–1999
KREPSKI LARRY Rself	23	2011–2018
GADDAM BABU N	11	2011–2016
OXMAN JOEL D	8	2013–2018

Locations

Location	Patents	Span
White Bear Lake, Minnesota, US	112	1985–2021
St. Paul, Minnesota, US	10	1988–2012