Inventor · disambiguated record
Klaus Nachtkamp
Also filed as: DIETERICH DIETER · NACHTKAMP KLAUS · NOLL KLAUS
49 granted patents·1 pending application·1,848 citations·filing 1977–2008
99Inventor score
Files withBAYER AG44NACHTKAMP KLAUS2ENGELHARDT JUERGEN1ENGELHARDT JURGEN1WOLFF CELLULOSICS GMBH & CO KG1
Top patents by PatentIndex Score
50 records- 0199US5236741AProcess for the production of polyurethane coatingsBAYER AG·Filed 1992·Granted Aug 17, 1993·236 cites·10 claims
- 0299US5126170AProcess for the production of polyurethane coatingsBAYER AG·Filed 1990·Granted Jun 30, 1992·355 cites·6 claims
- 0398US4237264AProcess for the preparation of polyurethanes which are dispersible in waterBAYER AG·Filed 1977·Granted Dec 2, 1980·123 cites·10 claims
- 0497US4269748AProcess for the preparation of aqueous polyurethane dispersions and solutionsBAYER AG·Filed 1979·Granted May 26, 1981·120 cites·18 claims
- 0596US4192937AProcess for the preparation of isocyanate polyaddition products which have hydroxyl groups in side chainsBAYER AG·Filed 1978·Granted Mar 11, 1980·93 cites·10 claims
- 0692US4303774APolyurethanes which are dispersible or soluble in water and a process for their preparationBAYER AG·Filed 1979·Granted Dec 1, 1981·47 cites·9 claims
- 0789US4745151AProcess for the production of aqueous dispersions of polyurethane polyureas, the dispersions obtainable by this process and their use as coating compositionsBAYER AG·Filed 1987·Granted May 17, 1988·43 cites·4 claims
- 0888US4829122AProcess for the preparation of aqueous polyurethane dispersions and solutionsBAYER AG·Filed 1987·Granted May 9, 1989·39 cites·9 claims
- 0986US4636545AAqueous dispersions of graft polymers or copolymers, a process for their production and their use as hydrophobizing and oleophobizing agents for textilesBAYER AG·Filed 1985·Granted Jan 13, 1987·36 cites·6 claims
- 1085US5747582AAqueous coating compositions and their use for the preparation of coatings that are permeable to water vaporBAYER AG·Filed 1995·Granted May 5, 1998·39 cites·9 claims
- 1185US5744633AProcess for the production of diurethanes and their use for the production of diisocyanatesBAYER AG·Filed 1994·Granted Apr 28, 1998·25 cites·6 claims
- 1285US5716676AAqueous coating compositions and their use for the preparation of coatings that are permeable to water vaporBAYER AG·Filed 1996·Granted Feb 10, 1998·47 cites·9 claims
- 1385US5141987AAqueous coating compositions containing water dispersible polyurethane polyureas as binders and the coatings produced therefromBAYER AG·Filed 1990·Granted Aug 25, 1992·40 cites·5 claims
- 1485US4452834AProcess for the preparation of aqueous dispersions or solutions of polyurethane polyureas containing heat activated cross-linking agents, the dispersions or solutions obtainable by this process, and their use for the production of coatingsBAYER AG·Filed 1982·Granted Jun 5, 1984·36 cites·11 claims
- 1585US4373081ACoating compositions and process for the production of polyurethane coatingsBAYER AG·Filed 1981·Granted Feb 8, 1983·34 cites·5 claims
- 1684US5981653AProcess for the production of aqueous stoving coating compositionsBAYER AG·Filed 1997·Granted Nov 9, 1999·48 cites·10 claims
- 1784US5747628APolyisocyanates containing ether and urethane groups, a process for their preparation and their use in the production of polyurethane lacquersBAYER AG·Filed 1992·Granted May 5, 1998·32 cites·8 claims
- 1880US5804647AAqueous polyurethane-ureas, a process for their production and their use in coating compositionsBAYER AG·Filed 1997·Granted Sep 8, 1998·35 cites·4 claims
- 1980US4743470ASpreading pastes containing polyurethane plastics and a process for the production of polyurethane coatings permeable to water vaporBAYER AG·Filed 1986·Granted May 10, 1988·27 cites·10 claims
- 2079US8722092B2Nanoparticles made of amorphous celluloseNACHTKAMP KLAUS·Filed 2008·Granted May 13, 2014·8 cites·11 claims
- 2179US4608413AAqueous polyurethane stoving lacquers and the use thereof for the production of lacquer films and coatingsBAYER AG·Filed 1984·Granted Aug 26, 1986·28 cites·6 claims
- 2277US5473011APolyisocyanate mixtures, a process for their preparation and their use as cross-linking agents in coating compositionsBAYER AG·Filed 1992·Granted Dec 5, 1995·22 cites·6 claims
- 2377US4543144AAqueous polyurethane compositions containing crosslinking agents and their use for heat-active one-coat reverse coatingBAYER AG·Filed 1984·Granted Sep 24, 1985·24 cites·16 claims
- 2476US4728542AIonically modified pur spreading pastes and their useBAYER AG·Filed 1986·Granted Mar 1, 1988·22 cites·13 claims
- 2574US5219975AProcess for the preparation of amines, the amines thus obtained and the use thereof as hardeners for epoxide resinsBAYER AG·Filed 1991·Granted Jun 15, 1993·26 cites·9 claims
- 2674US4652466ACoating agents of polyurethane dispersions and the use thereof for top coats and finishesBAYER AG·Filed 1986·Granted Mar 24, 1987·24 cites·18 claims
- 2774US4172191AProcess for the preparation of polyisocyanates addition products containing carboxylate groupsBAYER AG·Filed 1978·Granted Oct 23, 1979·19 cites·11 claims
- 2873US5334637AIsocyanatocarboxylic acids, a process for their preparation and their use in coating compositions as cross-linking agentsBAYER AG·Filed 1992·Granted Aug 2, 1994·20 cites·7 claims
- 2971US8182839B2Production of cellulose nanoparticlesENGELHARDT JURGEN·Filed 2007·Granted May 22, 2012·3 cites·12 claims
- 3071US5629402ACoating compositions and their use for the preparation of coatings permeable to water vaporBAYER AG·Filed 1994·Granted May 13, 1997·25 cites·21 claims
- 3170US5789620AProcess for the preparation of 1,4-bis(aminomethyl) cyclohexaneBAYER AG·Filed 1997·Granted Aug 4, 1998·14 cites·2 claims
- 3268US5731458AProcess for thermally cracking carbamic acid estersBAYER AG·Filed 1997·Granted Mar 24, 1998·22 cites·7 claims
- 3367US7071326B2Anionic cellulose nitrate derivatives and aqueous dispersions thereofWOLFF CELLULOSICS GMBH & CO KG·Filed 2005·Granted Jul 4, 2006·1 cites·10 claims
- 3467US5852106ACoating compositions for glass substratesBAYER AG·Filed 1997·Granted Dec 22, 1998·23 cites·3 claims
- 3566US4594385ACoating agents of polyurethane dispersions and the use thereof for top coats and finishesBAYER AG·Filed 1982·Granted Jun 10, 1986·15 cites·12 claims
- 3662US5889106APolyisocyanates blocked with 3,5-dimethyl-1,2,4-triazoleBAYER AG·Filed 1997·Granted Mar 30, 1999·16 cites·2 claims
- 3762US4876302APolyurethane dispersions and the use thereof as finishing agentsBAYER AG·Filed 1988·Granted Oct 24, 1989·17 cites·15 claims
- 3860US6509396B1Coating agent emulsion and its use in lacquersWOLFF WALSRODE AG·Filed 2000·Granted Jan 21, 2003·5 cites·5 claims
- 3959US5306740AProcess for the production of brominated chlorine-substituted poly-1,3-butadieneBAYER AG·Filed 1993·Granted Apr 26, 1994·14 cites·7 claims
- 4055US5061775AHeat curable mixtures and their use for the formation of coatings on heat resistant substratesBAYER AG·Filed 1990·Granted Oct 29, 1991·9 cites·17 claims
- 4154US4507427AProcess for production of polyisocyanates containing at least partly blocked isocyanate groups, compounds obtainable by this process and their use in production of polyurethanes, stoving lacquers or aqueous polyisocyanate solutions or dispersionsBAYER AG·Filed 1984·Granted Mar 26, 1985·10 cites·15 claims
- 4250US4594374AProcess for the production of aqueous dispersions and use thereof for the production of metal effect lacquer coatingsBAYER AG·Filed 1985·Granted Jun 10, 1986·11 cites·2 claims
- 4350US2006041117A1Process for the preparation of cellulose derivatives containing amino groupsENGELHARDT JUERGEN·Filed 2005·Application pending·0 cites
- 4449US8338494B2Nanoparticles from slightly oxidised celluloseNACHTKAMP KLAUS·Filed 2008·Granted Dec 25, 2012·1 cites·9 claims
- 4548US5096994APolyisocyanates containing ester groups, a process for the production of these polyisocyanates and their use in polyurethane coating compositionsBAYER AG·Filed 1990·Granted Mar 17, 1992·3 cites·4 claims
- 4646US4481345AProcess for the production of combinations of organic polyisocyanates and at least partly blocked polyamines, the combinations obtainable by this process and their use for the production of lacquers, coating or sealing compositionsBAYER AG·Filed 1984·Granted Nov 6, 1984·7 cites·10 claims
- 4738US5215618AA process for bonding substrates with an ester group-containing hot melt adhesiveBAYER AG·Filed 1991·Granted Jun 1, 1993·3 cites·6 claims
- 4832US5142081AProcess for the preparation of o-silylated hydroxyl compounds and their use for the preparation of isocyanates containing ester groupsBAYER AG·Filed 1990·Granted Aug 25, 1992·0 cites·11 claims
- 4931US6005046APolyisocyanates blocked with 3,5-dimethyl-1,2,4-triazoleBAYER AG·Filed 1999·Granted Dec 21, 1999·1 cites·6 claims
- 5029US5900510AProcess for the preparation of diaminodipropyl ethers and hydroxyaminodipropyl ethersBAYER AG·Filed 1997·Granted May 4, 1999·0 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →