Inventor · disambiguated record
Nathan N. Crounse
Also filed as: CROUNSE NATHAN N · CROUNSE NATHAN NORMAN · JEFFERIES PATRICK J
49 granted patents·379 citations·filing 1969–1986
98Inventor score
Top patents by PatentIndex Score
49 records- 0195US4647578APhototoxic insecticidal compositions and method of use thereofSTERLING DRUG INC·Filed 1984·Granted Mar 3, 1987·65 cites·23 claims
- 0293US4379710ANovel compositions and processesSTERLING DRUG INC·Filed 1981·Granted Apr 12, 1983·26 cites·7 claims
- 0393US4320140ASynergistic insecticidal compositionsSTERLING DRUG INC·Filed 1980·Granted Mar 16, 1982·48 cites·9 claims
- 0493US4103092AWater-soluble quaternary ammonium non-heterocyclic azo dyestuffsSTERLING DRUG INC·Filed 1975·Granted Jul 25, 1978·23 cites·153 claims
- 0590US4206144AN,N-Dialkyl-N-aminoalkyl-N-(amino or nitro)phenylalkyl- and N-methyl-N-[3-(amino or nitro)phenoxy-2-hydroxy-1-propyl]-N,N-bis(3-aminopropyl)quaternary ammonium saltsSTERLING DRUG INC·Filed 1978·Granted Jun 3, 1980·16 cites·10 claims
- 0684US3996282AWater-soluble quaternary ammonium dyestuffsSTERLING DRUG INC·Filed 1974·Granted Dec 7, 1976·11 cites·2 claims
- 0783US3993645AStilbene optical brighteners and compositions brightened therewithSTERLING DRUG INC·Filed 1975·Granted Nov 23, 1976·17 cites·6 claims
- 0873US4189171AMarking systems containing 3-aryl-3-heterylphthalides and 3,3-bis(heteryl)phthalidesSTERLING DRUG INC·Filed 1978·Granted Feb 19, 1980·7 cites·15 claims
- 0973US4005026ADetergent compositions containing novel crystalline forms of optical brightenersSTERLING DRUG INC·Filed 1975·Granted Jan 25, 1977·9 cites·3 claims
- 1071US4065500AWater-soluble quaternary ammonium azo dyestuffsSTERLING DRUG INC·Filed 1976·Granted Dec 27, 1977·7 cites·5 claims
- 1169US3951960ANovel crystalline forms of optical brightenersSTERLING DRUG INC·Filed 1969·Granted Apr 20, 1976·17 cites·13 claims
- 1267US4146558AAzo dyestuff intermediate nitro- or aminobenzenes ring-substituted by a quaternized amine alkyl or amino-alkoxy groupSTERLING DRUG INC·Filed 1977·Granted Mar 27, 1979·6 cites·12 claims
- 1367US4028372AMetal chelates of 1-imino-3-(4-thioxo-5-thiazolidinylidene)isoindolinesSTERLING DRUG INC·Filed 1975·Granted Jun 7, 1977·6 cites·9 claims
- 1465US4595768A3-(substituted phenyl)phthalidesHILTON DAVIS CHEMICAL CO·Filed 1984·Granted Jun 17, 1986·5 cites·19 claims
- 1562US4096176ABenzoylbenzoic acidsSTERLING DRUG INC·Filed 1972·Granted Jun 20, 1978·4 cites·3 claims
- 1662US3932301AStilbene optical brighteners and compositions brightened therewithSTERLING DRUG INC·Filed 1973·Granted Jan 13, 1976·6 cites·4 claims
- 1761US4075224A3,5-Bis (indolyl)-5-(indolyl)-2(5H)-furanonesSTERLING DRUG INC·Filed 1976·Granted Feb 21, 1978·3 cites·4 claims
- 1860US4351768A2-[(3-Indolyl)carbonyl]-4/5-carboxybenzoic acidsSTERLING DRUG INC·Filed 1980·Granted Sep 28, 1982·4 cites·2 claims
- 1959US4322352AIndolyl phthalide compoundsSTERLING DRUG INC·Filed 1980·Granted Mar 30, 1982·4 cites·17 claims
- 2058US4153598AMonoazo and diazo colorants from aminoalkylanilines and bis(aminoalkyl)anilinesSTERLING DRUG INC·Filed 1977·Granted May 8, 1979·4 cites·4 claims
- 2156US4477676A4-(3-Indolyl)-2,3-dichloro-4-oxo-2-butenoic acidsHILTON DAVIS CHEMICAL CO·Filed 1982·Granted Oct 16, 1984·3 cites·5 claims
- 2256US4448722APhthalocyaninesHILTON DAVIS CHEMICAL CO·Filed 1982·Granted May 15, 1984·14 cites·10 claims
- 2353US4412950AMonoazo and disazo colorantsSTERLING DRUG INC·Filed 1982·Granted Nov 1, 1983·4 cites·19 claims
- 2453US4376729ANovel monoazo and disazo colorantsSTERLING DRUG INC·Filed 1980·Granted Mar 15, 1983·4 cites·8 claims
- 2552US4111962ACertain substituted 2-phenylnaphtho[1,2-b]furane and -[2,1-b]furaneSTERLING DRUG INC·Filed 1973·Granted Sep 5, 1978·3 cites·7 claims
- 2652US3935195A4,4'-Stilbenebis-pyridooxazoles and related optical brighteners and polymeric compositions brightened therebySTERLING DRUG INC·Filed 1971·Granted Jan 27, 1976·3 cites·7 claims
- 2749US4122261APolycyclic iminoisoindoline chelatesSTERLING DRUG INC·Filed 1977·Granted Oct 24, 1978·3 cites·18 claims
- 2849US4066653A1-imino-3-(4-imino-5-thiazolidinylidene)isoindolinesSTERLING DRUG INC·Filed 1976·Granted Jan 3, 1978·3 cites·4 claims
- 2949US3993658AThiazolidinylidene-isoindolinesSTERLING DRUG INC·Filed 1975·Granted Nov 23, 1976·2 cites·7 claims
- 3046US4732991ASubstituted phthalidesHILTON DAVIS CHEMICAL CO·Filed 1986·Granted Mar 22, 1988·2 cites·3 claims
- 3146US3935182AWater-soluble quaternary ammonium heterocyclic azo dyestuffsSTERLING DRUG INC·Filed 1973·Granted Jan 27, 1976·8 cites·18 claims
- 3245US4251446APhthalide compounds, processes and marking systemsSTERLING DRUG INC·Filed 1979·Granted Feb 17, 1981·7 cites·2 claims
- 3345US4094877ATri- or tetrasubstituted diphenylphthalidesSTERLING DRUG INC·Filed 1976·Granted Jun 13, 1978·7 cites·52 claims
- 3443US4379088AN-Aminoalkylenesulfonamido substituted monoazo colorantsSTERLING DRUG INC·Filed 1981·Granted Apr 5, 1983·2 cites·10 claims
- 3542US4275121ACarbonless duplicating and marking systems utilizing indolyl-substituted furanone color formersSTERLING DRUG INC·Filed 1979·Granted Jun 23, 1981·5 cites·11 claims
- 3640US4451657A3,5- And 5,5-bis(3-indolyl)-2-(5H)furanonesHILTON DAVIS CHEMICAL CO·Filed 1979·Granted May 29, 1984·5 cites·11 claims
- 3740US4217272ANovel monoazo and disazo colorants from aminoalkylanilines and bis(aminoalkyl)anilinesSTERLING DRUG INC·Filed 1978·Granted Aug 12, 1980·5 cites·9 claims
- 3838US4032527APhenyljulolidinylphthalidesSTERLING DRUG INC·Filed 1974·Granted Jun 28, 1977·4 cites·6 claims
- 3938US3966753AThiazolidinylidene isoindoline pigmentsSTERLING DRUG INC·Filed 1974·Granted Jun 29, 1976·1 cites·5 claims
- 4037US4377698A2,4 Bis(2-indolyl-3)-4-oxobutanoic acidsSTERLING DRUG INC·Filed 1980·Granted Mar 22, 1983·2 cites·4 claims
- 4136US4379089APolyaminoalkylenesulfonamidated disazo colorantsSTERLING DRUG INC·Filed 1980·Granted Apr 5, 1983·1 cites·3 claims
- 4233US4209618AMorpholinodiphenylphthalidesSTERLING DRUG INC·Filed 1978·Granted Jun 24, 1980·0 cites·4 claims
- 4333US4028357A2'-(4,6-Disubstituted)-s-triazin-2-yl)amino-6'-dialkylamino fluransSTERLING DRUG INC·Filed 1975·Granted Jun 7, 1977·2 cites·22 claims
- 4431US4536570AN-Aminoalkylenesulfonamido substituted disazo colorantsHILTON DAVIS CHEMICAL CO·Filed 1982·Granted Aug 20, 1985·1 cites·2 claims
- 4531US3998826ATriazinyl-benzofluoransSTERLING DRUG INC·Filed 1975·Granted Dec 21, 1976·0 cites·7 claims
- 4631US3998825ATriazinyl-benzofluoransSTERLING DRUG INC·Filed 1975·Granted Dec 21, 1976·0 cites·11 claims
- 4730US4307018AHeteroarylphthalidesSTERLING DRUG INC·Filed 1980·Granted Dec 22, 1981·0 cites·1 claims
- 4830US4220357ADiphenylphthalide duplicating and marking systemsSTERLING DRUG INC·Filed 1979·Granted Sep 2, 1980·0 cites·8 claims
- 4928US3974144ACompounds including carboxystyrylphenyl groupSTERLING DRUG INC·Filed 1973·Granted Aug 10, 1976·0 cites·25 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →