Inventor · disambiguated record
Burton G. Christensen
Also filed as: CAMA LOVJI D · CHRISTENSEN BURTON · CHRISTENSEN BURTON G · DININNO FRANK P
158 granted patents·10 pending applications·1,971 citations·filing 1969–2008
99Inventor score
Files withMERCK & CO INC149MICROCIDE PHARMACEUTICALS INC7CHRISTENSEN BURTON G4INFINITY PHARMACEUTICALS INC1MEIJI SEIKA KAISHA1
Top patents by PatentIndex Score
168 records- 0198US4543257A1-Carba-2-penem-3-carboxylic acidMERCK & CO INC·Filed 1980·Granted Sep 24, 1985·66 cites·41 claims
- 0298US4260627A1-, 6- And 2-substituted-1-carba-2-penem-3-carboxylic acidsMERCK & CO INC·Filed 1978·Granted Apr 7, 1981·87 cites·6 claims
- 0398US4194047ASubstituted N-methylene derivatives of thienamycinMERCK & CO INC·Filed 1977·Granted Mar 18, 1980·90 cites·14 claims
- 0497US4260618A6-(1'-Hydroxyethyl)-2-substituted-pen-2-em-3-carboxylic acidMERCK & CO INC·Filed 1978·Granted Apr 7, 1981·39 cites·3 claims
- 0597US4123528A3-(Substituted thio) cephalosporins, derivatives and nuclear analogues thereofMERCK & CO INC·Filed 1977·Granted Oct 31, 1978·45 cites·3 claims
- 0696US4465632AProcess for preparing 1-6-and 2-substituted-1-carba-2-penem-3-carboxylic acidsMERCK & CO INC·Filed 1982·Granted Aug 14, 1984·53 cites·2 claims
- 0796US4168314A6-(1'-Hydroxyethyl)-2-aminoethylthio-pen-2-em-3-carboxylic acidMERCK & CO INC·Filed 1977·Granted Sep 18, 1979·28 cites·2 claims
- 0895US4479947AOral absorption enhancement of carboxylic acid pharmaceuticals using (5-alkyl-2-oxo-1,3-dioxolen-4-yl)methyl ester groupMERCK & CO INC·Filed 1982·Granted Oct 30, 1984·36 cites·11 claims
- 0995US4232036A6-, 1- and 2-Substituted-1-carbadethiapen-2-em-3-carboxylic acidsMERCK & CO INC·Filed 1978·Granted Nov 4, 1980·35 cites·6 claims
- 1095US4150156A7-(Substituted methyl)-3-(substituted thio)-cephalosporins, derivatives and pharmaceutical compositions containing themMERCK & CO INC·Filed 1978·Granted Apr 17, 1979·37 cites·6 claims
- 1194US4775669A1-carba-2-penem-3-carboxylic acidMERCK & CO INC·Filed 1987·Granted Oct 4, 1988·47 cites·27 claims
- 1294US4312871A6-, 1- And 2-substituted-1-carbadethiapen-2-em-3-carboxylic acidsMERCK & CO INC·Filed 1979·Granted Jan 26, 1982·28 cites·10 claims
- 1394US4206219A6- and 1-Substituted-1-carbadethiapen-2-em-3-carboxylic acidMERCK & CO INC·Filed 1978·Granted Jun 3, 1980·28 cites·4 claims
- 1492US4383946AProcess for the preparation of 1-carbapenems and intermediates via silyl-substituted dithioacetalsMERCK & CO INC·Filed 1981·Granted May 17, 1983·27 cites·1 claims
- 1592US4309438AN-Alkyl-N-iminomethyl derivatives of thienamycinMERCK & CO INC·Filed 1980·Granted Jan 5, 1982·29 cites·17 claims
- 1692US4297488A7-α-Methoxy cephalosporinsMERCK & CO INC·Filed 1971·Granted Oct 27, 1981·25 cites·11 claims
- 1792US4273709AProcess for the preparation of thienamycin and intermediatesMERCK & CO INC·Filed 1979·Granted Jun 16, 1981·21 cites·4 claims
- 1892US4234596A3-(2-Aminoethylthio)-6-(1-hydroxyethyl)-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acidMERCK & CO INC·Filed 1979·Granted Nov 18, 1980·26 cites·12 claims
- 1992US4226866ANovel antibiotic analogues of cephalosporinsMERCK & CO INC·Filed 1979·Granted Oct 7, 1980·22 cites·19 claims
- 2092US4218462A6-(1-Hydroxyethyl)-2-(2-aminoethylthio)-1-substituted-1-carbade-thiapen-2-em-3-carboxylic acidsMERCK & CO INC·Filed 1978·Granted Aug 19, 1980·21 cites·5 claims
- 2192US4217453A6-Amido-3-substituted-amino-1-azabicyclo[3.2.0]hept-2-en-7-one-2-carboxylic acidMERCK & CO INC·Filed 1978·Granted Aug 12, 1980·25 cites·4 claims
- 2291US4301074A6-(1'-Hydroxyethyl)-2-substituted-pen-2-em-3-carboxylic acidMERCK & CO INC·Filed 1979·Granted Nov 17, 1981·20 cites·1 claims
- 2391US4207323A6-Substituted methyl penicillins, derivatives and analogues thereofMERCK & CO INC·Filed 1978·Granted Jun 10, 1980·20 cites·3 claims
- 2490US4654331AOral absorption enhancement of carboxylic acid pharmaceuticals using (5-alkyl-2-oxo-1,3-dioxolen-4-yl)methyl ester groupMERCK & CO INC·Filed 1984·Granted Mar 31, 1987·26 cites·2 claims
- 2590US4174316A4-Iodomethylazetidin-2-oneMERCK & CO INC·Filed 1978·Granted Nov 13, 1979·17 cites·1 claims
- 2689US5547978ADerivatives of pyrrolidin-2-ylcarbonylheterocyclic compoundsMEIJI SEIKA KAISHA·Filed 1994·Granted Aug 20, 1996·47 cites·13 claims
- 2789US4318912A6-(1-Hydroxyethyl)-3-substituted-1-azabicyclo(3.2.0)-hept-2-en-7-one-2-carboxylic acidMERCK & CO INC·Filed 1980·Granted Mar 9, 1982·20 cites·4 claims
- 2889US4309346AProcess for the preparation of 1-carbapenems and intermediates via trithioorthoacetatesMERCK & CO INC·Filed 1980·Granted Jan 5, 1982·24 cites·8 claims
- 2989US4235920AN-Alkylated derivatives of thienamycinMERCK & CO INC·Filed 1977·Granted Nov 25, 1980·18 cites·8 claims
- 3089US4218463A3-Substituted thio-6-amido-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acidMERCK & CO INC·Filed 1977·Granted Aug 19, 1980·17 cites·3 claims
- 3189US4189493AN-heterocyclic derivatives of thienamycinMERCK & CO INC·Filed 1977·Granted Feb 19, 1980·17 cites·3 claims
- 3288US4262010A6-(1-Hydroxyethyl)-2-(2-aminoethylthio)-1,1-disubstituted-1-carbadethiapen-2-em-3-carboxylic acidsMERCK & CO INC·Filed 1979·Granted Apr 14, 1981·15 cites·6 claims
- 3388US4262009A6- And 1,1-disubstituted-1-carbadethiapen-2-em-3-carboxylic acidMERCK & CO INC·Filed 1979·Granted Apr 14, 1981·16 cites·7 claims
- 3488US4218459A6-Amido-1-carba-2-penem-3-carboxylic acidMERCK & CO INC·Filed 1977·Granted Aug 19, 1980·20 cites·15 claims
- 3588US4150145AN-alkylated derivatives of thienamycin sulfoxide and sulfoneMERCK & CO INC·Filed 1977·Granted Apr 17, 1979·16 cites·7 claims
- 3688US4071529ADerivatives of 6-aminopenicillanic acidMERCK & CO INC·Filed 1974·Granted Jan 31, 1978·16 cites·4 claims
- 3788US4035359A6α, β-Substituted penicillin derivativesMERCK & CO INC·Filed 1975·Granted Jul 12, 1977·15 cites·6 claims
- 3887US4293555A6- and 6,6-Disubstituted-2-substituted-oxapen-2-em-3-carboxylic acidsMERCK & CO INC·Filed 1979·Granted Oct 6, 1981·14 cites·5 claims
- 3987US4290947AProcess for the preparation of thienamycin and intermediatesMERCK & CO INC·Filed 1980·Granted Sep 22, 1981·23 cites·1 claims
- 4087US4267188A5-Substituted-1-carba-pen-2-em-3-carboxylic acidMERCK & CO INC·Filed 1979·Granted May 12, 1981·14 cites·32 claims
- 4187US4032521ACephalosporin phosphonic acid, sulfonic acid and sulfonamide compoundsMERCK & CO INC·Filed 1973·Granted Jun 28, 1977·16 cites·9 claims
- 4286US4350631A6- and 4-Substituted-1-azabicyclo[3.2.0]heptan-3,7-dione-2-carboxylatesMERCK & CO INC·Filed 1981·Granted Sep 21, 1982·28 cites·7 claims
- 4386US4235917AN-Alkyl-N-acyl derivatives of thienamycinMERCK & CO INC·Filed 1977·Granted Nov 25, 1980·14 cites·6 claims
- 4486US4208422A1-Substituted-pen-2-em-3-carboxylic acidsMERCK & CO INC·Filed 1978·Granted Jun 17, 1980·17 cites·3 claims
- 4586US4041029AAcylimine cephalosporinsMERCK & CO INC·Filed 1975·Granted Aug 9, 1977·14 cites·5 claims
- 4686US4014873AProcess for the production of 7-acylamidocephalosporinsMERCK & CO INC·Filed 1974·Granted Mar 29, 1977·16 cites·7 claims
- 4785US4374848A6-(1-Hydroxyethyl)cyclonocardicinMERCK & CO INC·Filed 1981·Granted Feb 22, 1983·16 cites·3 claims
- 4885US4226870AO-, N- and carboxyl derivatives of thienamycinMERCK & CO INC·Filed 1977·Granted Oct 7, 1980·13 cites·2 claims
- 4985US4058661A7-Diacyl cephalosporinsMERCK & CO INC·Filed 1975·Granted Nov 15, 1977·13 cites·5 claims
- 5084US4424230A6-(1'-Hydroxyethyl)-3-substituted amino-1-azabicyclo- 3.2.0!hept-2-en-7-one-2-carboxylic acidMERCK & CO INC·Filed 1980·Granted Jan 3, 1984·16 cites·4 claims
Showing the top 50 of 168 patent records by PatentIndex Score.
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