Inventor · disambiguated record
Johannes Blahak
Also filed as: BLAHAK JOHANNES
31 granted patents·521 citations·filing 1974–1986
97Inventor score
Top patents by PatentIndex Score
31 records- 0194US4248930AThe production of polyurethane resins and laminatesBAYER AG·Filed 1979·Granted Feb 3, 1981·63 cites·10 claims
- 0294US4143003APolyurethanes made with linear polyaminesBAYER AG·Filed 1977·Granted Mar 6, 1979·60 cites·10 claims
- 0393US4348536AOdorless catalysts for the synthesis of polyurethanesBAYER AG·Filed 1978·Granted Sep 7, 1982·33 cites·2 claims
- 0487US4186257AProcess for the preparation of new segmented polyurethane resins derived from block copolymers being linked together through ester and/or urethane and/or urea groupsBAYER AG·Filed 1978·Granted Jan 29, 1980·32 cites·11 claims
- 0584US4169206APolymers containing amino groups and hydroxyl and/or mercapto groups and the use thereof for the production of polyurethane resinsBAYER AG·Filed 1977·Granted Sep 25, 1979·25 cites·5 claims
- 0681US4312672ARelease agent for removing plastics, especially polyurethane plastics from moldsMETZELER KAUTSCHUK·Filed 1980·Granted Jan 26, 1982·45 cites·9 claims
- 0781US3975428AAromatic amines formed by the reaction of isatoic acid anhydride with compounds containing at least one tertiary nitrogen atom and at least two hydroxyl groupsBAYER AG·Filed 1974·Granted Aug 17, 1976·24 cites·10 claims
- 0873US4133943AProcess for the production of polyurethane elastomers and foamsBAYER AG·Filed 1978·Granted Jan 9, 1979·18 cites·8 claims
- 0971US4754001AThermosetting cyanate resin and the use thereof for the production of composite materials and IPNsBAYER AG·Filed 1986·Granted Jun 28, 1988·15 cites·7 claims
- 1069US4323657ADispersions of high melting polyesters in polyhydroxyl compounds, a process for their preparation and their use in the production of polyurethanesBAYER AG·Filed 1980·Granted Apr 6, 1982·20 cites·13 claims
- 1169US4061697APhosphorus containing flame retarding agents which are reactive with isocyanatesBAYER AG·Filed 1975·Granted Dec 6, 1977·7 cites·6 claims
- 1268US4631319AThermosetting cyanate resin and the use thereof for the production of composite materials and IPNsBAYER AG·Filed 1985·Granted Dec 23, 1986·22 cites·7 claims
- 1368US4107103APolyurethanes produced from phosphorus containing flame retarding agents which are reactive with isocyanatesBAYER AG·Filed 1977·Granted Aug 15, 1978·16 cites·6 claims
- 1468US4016143APolyurethanes based on aromatic polyaminesBAYER AG·Filed 1976·Granted Apr 5, 1977·16 cites·6 claims
- 1567US4260557APolymer containing amino groups and hydroxyl and/or mercapto groups and the use thereof for the production of polyurethane resinsBAYER AG·Filed 1979·Granted Apr 7, 1981·12 cites·1 claims
- 1667US4228249ASegmented polyurethane resinsBAYER AG·Filed 1979·Granted Oct 14, 1980·13 cites·5 claims
- 1761US4007239AAromatic diaminesBAYER AG·Filed 1975·Granted Feb 8, 1977·11 cites·1 claims
- 1859US4096101AProcess for the production of chemically after-cross-linked polyurethane resinsBAYER AG·Filed 1977·Granted Jun 20, 1978·13 cites·4 claims
- 1958US4297442ACellular elastomeric foams and method of production using an expanding agent containing a component reactive with the polyamine chain-lengthening agentMETZELER KAUTSCHUK·Filed 1980·Granted Oct 27, 1981·12 cites·12 claims
- 2058US4107152APolyurethanes produced from phosphorus containing flame retarding agents which are reactive with isocyanatesBAYER AG·Filed 1977·Granted Aug 15, 1978·4 cites·6 claims
- 2156US4310633AHexahydrotriazine carboxylates and the use thereof as catalysts in the production of polyisocyanurate plasticsBAYER AG·Filed 1980·Granted Jan 12, 1982·9 cites·5 claims
- 2256US4136091AProcess for the preparation of polymers containing amino groups and hydroxyl and/or mercapto groupsBAYER AG·Filed 1977·Granted Jan 23, 1979·9 cites·4 claims
- 2356US3971741AWater-insoluble polyazo dyestuff comprising two or three identical azo dyestuffs joined to a central nucleus by carboxyl bridgesBAYER AG·Filed 1974·Granted Jul 27, 1976·12 cites·1 claims
- 2454US4100116APolyurethane foams from polyether polyols which contain amide groupsBAYER AG·Filed 1976·Granted Jul 11, 1978·8 cites·17 claims
- 2547US3991023APolyurethanes wherein the chain-lengthening agents are benzoic ester diaminesBAYER AG·Filed 1974·Granted Nov 9, 1976·6 cites·2 claims
- 2643US4152510APolyurethane elastomers and a process for their productionBAYER AG·Filed 1977·Granted May 1, 1979·4 cites·2 claims
- 2741US4101569AProcess for the preparation of 4,4'-dinitrodiphenyl carbonateBAYER AG·Filed 1976·Granted Jul 18, 1978·1 cites·8 claims
- 2841US4022720AProcess for the production of polyurethane foamsBAYER AG·Filed 1975·Granted May 10, 1977·4 cites·10 claims
- 2938US4365000AMolded bodies of vulcanized rubber having a vulcanized-on layer of varnishMETZELER KAUTSCHUK·Filed 1980·Granted Dec 21, 1982·5 cites·5 claims
- 3034US4260754AHexahydrotriazine carboxylates and the use thereof as catalysts in the production of polyisocyanurate plasticsBAYER AG·Filed 1979·Granted Apr 7, 1981·1 cites·2 claims
- 3132US4659797AMatrix materials and a process for their preparationBAYER AG·Filed 1986·Granted Apr 21, 1987·1 cites·19 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →