William H. Koster

Person

East Amwell Township, Hunterdon County, NJ, US

People

Patents Grantslast 30 patents

Information Patent Grant
Hereroaryl derivatives of monocyclic beta-lactam antibiotics
- Patent number 5,705,645
- Issue date Jan 6, 1998
- E. R. Squibb & Sons, Inc.
- William H. Koster
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Intermediates for the preparation of heteroaryl derivatives of mono...
- Patent number 5,420,277
- Issue date May 30, 1995
- E. R. Squibb & Sons, Inc.
- William H. Koster
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Heteroaryl derivatives of monocyclic beta-lactam antibiotics
- Patent number 5,290,929
- Issue date Mar 1, 1994
- E. R. Squibb & Sons, Inc.
- William H. Koster
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
2-oxo-1-azetidinesulfonic acid salts
- Patent number 4,775,670
- Issue date Oct 4, 1988
- E. R. Squibb & Sons, Inc.
- Richard B. Sykes
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Crystalline salts of [3S(Z)]-2[[[1-(2-amino-4-thiazolyl)-2-[[2,2-di...
- Patent number 4,751,220
- Issue date Jun 14, 1988
- E. R. Squibb & Sons, Inc.
- W. Lawrence Parker
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
2-oxo-1-[[(substituted sulfonyl)amino]carbonyl]azetidines
- Patent number 4,743,685
- Issue date May 10, 1988
- E. R. Squibb & Sons, Inc.
- Hermann Breuer
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
1-(substituted phosphorous)-azetidinone antibacterials
- Patent number 4,723,002
- Issue date Feb 2, 1988
- E. R. Squibb & Sons, Inc.
- Gregory S. Bisacchi
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
3-acylamino-2-oxo-1-azetidinyl esters of phosphonic acids, phosphor...
- Patent number 4,681,937
- Issue date Jul 21, 1987
- E. R. Squibb & Sons, Inc.
- William A. Slusarchyk
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
O-sulfated spiro .beta.-lactam hydroxamic acids
- Patent number 4,680,388
- Issue date Jul 14, 1987
- E. R. Squibb & Sons, Inc.
- Joseph E. Sundeen
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
((3-Acylamino-2-oxo-1-azetidinyl)oxy)methyl)phosphinic acids
- Patent number 4,670,554
- Issue date Jun 2, 1987
- E. R. Squibb & Sons, Inc.
- William H. Koster
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Acetylenic antibiotics
- Patent number 4,654,426
- Issue date Mar 31, 1987
- E. R. Squibb & Sons, Inc.
- Gregory S. Bisacchi
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
O-sulfated spiro .beta.-lactam hydroxamic acids
- Patent number 4,638,060
- Issue date Jan 20, 1987
- E. R. Squibb & Sons, Inc.
- Joseph E. Sundeen
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
[3S(Z)]-2-[[[1-(2-amino-4-thiazolyl)-2-[[2,2-dimethyl-4-oxo-1-(sulf...
- Patent number 4,638,061
- Issue date Jan 20, 1987
- E. R. Squibb & Sons, Inc.
- William A. Slusarchyk
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Acetylenic antibiotics
- Patent number 4,588,828
- Issue date May 13, 1986
- E. R. Squibb & Sons, Inc.
- Gregory S. Bisacchi
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Desulfonation process for preparing 2-azetidinones
- Patent number 4,587,051
- Issue date May 6, 1986
- E. R. Squibb & Sons, Inc.
- William H. Koster
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
3-Acylamino-1-carboxymethylaminocarbonyl-2-azetidinones
- Patent number 4,576,749
- Issue date Mar 18, 1986
- E. R. Squibb & Sons, Inc.
- Robert Zahler
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
8-Oxo-2-oxa-1-azabicyclo(4.2.0)octane-3-carboxylic acids
- Patent number 4,574,153
- Issue date Mar 4, 1986
- E. R. Squibb & Sons, Inc.
- David Kronenthal
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
(2-Oxo-1-azetidinyloxy)-2-propenoic acid
- Patent number 4,548,751
- Issue date Oct 22, 1985
- E. R. Squibb & Sons, Inc.
- Spencer D. Kimball
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing a 2-oxo-1-azetidinesulfonic acid salt
- Patent number 4,529,698
- Issue date Jul 16, 1985
- E. R. Squibb & Sons, Inc.
- Richard B. Sykes
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
2-Oxo-1-(substituted phosphorous)azetidines
- Patent number 4,478,749
- Issue date Oct 23, 1984
- E. R. Squibb & Sons, Inc.
- William H. Koster
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing (3S)-3-[[(2-amino-4-thiazolyl)[(1-carboxy-1-m...
- Patent number 4,443,374
- Issue date Apr 17, 1984
- E. R. Squibb & Sons, Inc.
- Christopher M. Cimarusti
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
7-[2-(2-Amino-4-thiazolyl)-2-[(1-carboxy-1,1-dialkyl)alkoxyimino]ac...
- Patent number 4,237,128
- Issue date Dec 2, 1980
- E. R. Squibb & Sons, Inc.
- Christopher M. Cimarusti
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
.beta.-Bromopenicillanic acid sulfone
- Patent number 4,203,992
- Issue date May 20, 1980
- E. R. Squibb & Sons, Inc.
- Eric M. Gordon
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for converting 3-methylene cephalosporins to 3-heterothiome...
- Patent number 4,129,731
- Issue date Dec 12, 1978
- E. R. Squibb & Sons, Inc.
- William A. Slusarchyk
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
7-.alpha. substituted imino 7-.beta. substituted thio cephalosporin...
- Patent number 4,071,682
- Issue date Jan 31, 1978
- E. R. Squibb & Sons, Inc.
- Joseph Edward Dolfini
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for preparing 7-substituted cephalosporins and 6-substituted...
- Patent number 4,062,842
- Issue date Dec 13, 1977
- E. R. Squibb & Sons, Inc.
- Joseph E. Dolfini
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
7-(.alpha.-Cyanomethylthio)acetamido-3-cephem carboxylates
- Patent number 3,985,746
- Issue date Oct 12, 1976
- E. R. Squibb & Sons, Inc.
- William Henry Koster
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Production of 2-(thio substituted)cephalosporin sulfoxides and 2-(t...
- Patent number 3,968,109
- Issue date Jul 6, 1976
- E. R. Squibb & Sons, Inc.
- William Henry Koster
- C07 - ORGANIC CHEMISTRY

William H. Koster

Person

Patents Grantslast 30 patents

Hereroaryl derivatives of monocyclic beta-lactam antibiotics

Intermediates for the preparation of heteroaryl derivatives of mono...

Heteroaryl derivatives of monocyclic beta-lactam antibiotics

2-oxo-1-azetidinesulfonic acid salts

Crystalline salts of [3S(Z)]-2[[[1-(2-amino-4-thiazolyl)-2-[[2,2-di...

2-oxo-1-[[(substituted sulfonyl)amino]carbonyl]azetidines

1-(substituted phosphorous)-azetidinone antibacterials

3-acylamino-2-oxo-1-azetidinyl esters of phosphonic acids, phosphor...

O-sulfated spiro .beta.-lactam hydroxamic acids

((3-Acylamino-2-oxo-1-azetidinyl)oxy)methyl)phosphinic acids

Acetylenic antibiotics

O-sulfated spiro .beta.-lactam hydroxamic acids

[3S(Z)]-2-[[[1-(2-amino-4-thiazolyl)-2-[[2,2-dimethyl-4-oxo-1-(sulf...

Acetylenic antibiotics

Desulfonation process for preparing 2-azetidinones

3-Acylamino-1-carboxymethylaminocarbonyl-2-azetidinones

8-Oxo-2-oxa-1-azabicyclo(4.2.0)octane-3-carboxylic acids

(2-Oxo-1-azetidinyloxy)-2-propenoic acid

Process for preparing a 2-oxo-1-azetidinesulfonic acid salt

2-Oxo-1-(substituted phosphorous)azetidines

Process for preparing (3S)-3-[[(2-amino-4-thiazolyl)[(1-carboxy-1-m...

7-[2-(2-Amino-4-thiazolyl)-2-[(1-carboxy-1,1-dialkyl)alkoxyimino]ac...

.beta.-Bromopenicillanic acid sulfone

Process for converting 3-methylene cephalosporins to 3-heterothiome...

7-.alpha. substituted imino 7-.beta. substituted thio cephalosporin...

Method for preparing 7-substituted cephalosporins and 6-substituted...

7-(.alpha.-Cyanomethylthio)acetamido-3-cephem carboxylates

Production of 2-(thio substituted)cephalosporin sulfoxides and 2-(t...