Leo Joseph Letendre

Person

Oakdale, CT, US

People

Patents Grantslast 30 patents

Information Patent Grant
Capped and uncapped antibody cysteines, and their use in antibody-d...
- Patent number 11,980,669
- Issue date May 14, 2024
- Pfizer, Inc.
- Xiaotian Zhong
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Capped and uncapped antibody cysteines, and their use in antibody-d...
- Patent number 10,653,794
- Issue date May 19, 2020
- Pfizer Inc.
- Xiaotian Zhong
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Intermediates and methods for synthesizing calicheamicin derivatives
- Patent number 10,508,081
- Issue date Dec 17, 2019
- Pfizer Inc.
- Robert Wayne Dugger
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Intermediates and methods for synthesizing calicheamicin derivatives
- Patent number 9,902,691
- Issue date Feb 27, 2018
- Pfizer Inc.
- Robert Wayne Dugger
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Synthesis of diaryl pyrazoles
- Patent number 7,759,497
- Issue date Jul 20, 2010
- Pfizer Inc.
- Leo J. Letendre
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Synthesis of diaryl pyrazoles
- Patent number 7,141,678
- Issue date Nov 28, 2006
- Pharmacia Corporation
- Leo J. Letendre
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Keto-substituted steroid compounds
- Patent number 7,129,345
- Issue date Oct 31, 2006
- Pharmacia Corporation
- John S. Ng
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Grant
Processes for preparation of 9,11-epoxy steroids and intermediates...
- Patent number 7,112,669
- Issue date Sep 26, 2006
- Pharmacia Corporation (of Pfizer, Inc.)
- John S. Ng
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Grant
Process for preparation of 9, 11-epoxy steroids and intermediates u...
- Patent number 7,038,040
- Issue date May 2, 2006
- G.D. Searle & Co.
- John S. Ng
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Grant
Processes for preparation of 9,11-epoxy steroids and intermediates...
- Patent number 6,953,851
- Issue date Oct 11, 2005
- G.D. Searle & Company
- John S. Ng
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Grant
Processes for preparation of 9, 11-epoxy steroids and intermediates...
- Patent number 6,887,991
- Issue date May 3, 2005
- G.D. Searle & Company
- John S. Ng
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Grant
Processes for preparation of 9,11-epoxy steroids and intermediates...
- Patent number 6,630,587
- Issue date Oct 7, 2003
- G.D. Searle & Company
- John S. Ng
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Grant
Processes for preparation of 9,11-epoxy steroids and intermediates...
- Patent number 6,610,844
- Issue date Aug 26, 2003
- G.D. Searle & Company
- John S. Ng
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Grant
Process for preparation of 9,11-epoxy steroids and intermediates us...
- Patent number 6,586,591
- Issue date Jul 1, 2003
- G. D. Searle & Co.
- John S. Ng
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Grant
5β-cyano-substituted steroid compounds
- Patent number 6,335,441
- Issue date Jan 1, 2002
- G. D. Searle & Co.
- John S. Ng
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Processes for preparation of 9, 11-epoxy steroids and intermediates...
- Patent number 6,331,622
- Issue date Dec 18, 2001
- G. D. Searle & Co.
- John S. Ng
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Keto-Substituted Steroid Compounds
- Patent number 6,258,946
- Issue date Jul 10, 2001
- G. D. Searle & Co.
- John S. Ng
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Processes for preparation of 9,11-epoxy steroids and intermediates...
- Patent number 6,180,780
- Issue date Jan 30, 2001
- G. D. Searle & Co.
- John S. Ng
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Synthesis of benzo fused heterocyclic sulfonyl chlorides
- Patent number 6,140,505
- Issue date Oct 31, 2000
- G. D. Searle & Co.
- Sastry A. Kunda
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Processes for preparation of 9,11-epoxy steroids and intermediates...
- Patent number 5,981,744
- Issue date Nov 9, 1999
- G. D. Searle & Co.
- John S. Ng
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
CAPPED AND UNCAPPED ANTIBODY CYSTEINES, AND THEIR USE IN ANTIBODY-D...
- Publication number 20200230256
- Publication date Jul 23, 2020
- Pfizer Inc.
- Xiaotian Zhong
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
CAPPED AND UNCAPPED ANTIBODY CYSTEINES, AND THEIR USE IN ANTIBODY-D...
- Publication number 20190030183
- Publication date Jan 31, 2019
- Pfizer Inc.
- Xiaotian Zhong
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
INTERMEDIATES AND METHODS FOR SYNTHESIZING CALICHEAMICIN DERIVATIVES
- Publication number 20180134656
- Publication date May 17, 2018
- Pfizer Inc.
- Robert Wayne Dugger
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
INTERMEDIATES AND METHODS FOR SYNTHESIZING CALICHEAMICIN DERIVATIVES
- Publication number 20160251389
- Publication date Sep 1, 2016
- Pfizer Inc.
- Robert Wayne Dugger
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Processes for preparations of 9,11-epoxy steroids and intermediates...
- Publication number 20080027237
- Publication date Jan 31, 2008
- John S. Ng
- C07 - ORGANIC CHEMISTRY
Information Patent Application
PROCESSES FOR PREPARATION OF 9,11 EPOXY STEROIDS AND INTERMEDIATES...
- Publication number 20070060746
- Publication date Mar 15, 2007
- G.D. Searle, LLC (formerly named G.D. Searle & Co.)
- John S. Ng
- C07 - ORGANIC CHEMISTRY
Information Patent Application
SYNTHESIS OF DIARYL PYRAZOLES
- Publication number 20070004924
- Publication date Jan 4, 2007
- Pharmacia Corporation
- Leo J. Letendre
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Processes for preparation of 9, 11-epoxy steroids and intermediates...
- Publication number 20050256094
- Publication date Nov 17, 2005
- G.D. Searle & Company
- John S. Ng
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Processes for preparation of 9,11-epoxy steroids and intermediates...
- Publication number 20050239761
- Publication date Oct 27, 2005
- G.D. Searle & Company
- John S. Ng
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Process for preparation of 9, 11-epoxy steroids and intermediates u...
- Publication number 20040191874
- Publication date Sep 30, 2004
- G.D. Searle & Company
- John S. Ng
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Processes for preparation of 9, 11-epoxy steroids and intermediates...
- Publication number 20040067917
- Publication date Apr 8, 2004
- G.D. Searle & Company
- John S. Ng
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Synthesis of diaryl pyrazoles
- Publication number 20040024225
- Publication date Feb 5, 2004
- Pharmacia Corporation
- Leo J. Letendre
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Method for preparing benzenesulfonyl compounds
- Publication number 20030105334
- Publication date Jun 5, 2003
- Leo J. Letendre
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Processes for preparation of 9,11-epoxy steroids and intermediates...
- Publication number 20030100541
- Publication date May 29, 2003
- John S. Ng
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Processes for preparation of 9,11-epoxy steroids and intermediates...
- Publication number 20030055274
- Publication date Mar 20, 2003
- G.D. Searle & Company
- John S. Ng
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Application
Process for preparation of 9,11-epoxy steroids and intermediates us...
- Publication number 20020042507
- Publication date Apr 11, 2002
- John S. Ng
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Application
Processes for preparation of 9-11, epoxy steroids and intermediates...
- Publication number 20020019522
- Publication date Feb 14, 2002
- John S. Ng
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Application
Processes for preparation of 9,11- epoxy steroids and intermediates...
- Publication number 20020016455
- Publication date Feb 7, 2002
- John S. Ng
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...

Leo Joseph Letendre

Person

Patents Grantslast 30 patents

Capped and uncapped antibody cysteines, and their use in antibody-d...

Capped and uncapped antibody cysteines, and their use in antibody-d...

Intermediates and methods for synthesizing calicheamicin derivatives

Intermediates and methods for synthesizing calicheamicin derivatives

Synthesis of diaryl pyrazoles

Synthesis of diaryl pyrazoles

Keto-substituted steroid compounds

Processes for preparation of 9,11-epoxy steroids and intermediates...

Process for preparation of 9, 11-epoxy steroids and intermediates u...

Processes for preparation of 9,11-epoxy steroids and intermediates...

Processes for preparation of 9, 11-epoxy steroids and intermediates...

Processes for preparation of 9,11-epoxy steroids and intermediates...

Processes for preparation of 9,11-epoxy steroids and intermediates...

Process for preparation of 9,11-epoxy steroids and intermediates us...

5&#x03B2;-cyano-substituted steroid compounds

Processes for preparation of 9, 11-epoxy steroids and intermediates...

Keto-Substituted Steroid Compounds

Processes for preparation of 9,11-epoxy steroids and intermediates...

Synthesis of benzo fused heterocyclic sulfonyl chlorides

Processes for preparation of 9,11-epoxy steroids and intermediates...

Patents Applicationslast 30 patents

CAPPED AND UNCAPPED ANTIBODY CYSTEINES, AND THEIR USE IN ANTIBODY-D...

CAPPED AND UNCAPPED ANTIBODY CYSTEINES, AND THEIR USE IN ANTIBODY-D...

INTERMEDIATES AND METHODS FOR SYNTHESIZING CALICHEAMICIN DERIVATIVES

INTERMEDIATES AND METHODS FOR SYNTHESIZING CALICHEAMICIN DERIVATIVES

Processes for preparations of 9,11-epoxy steroids and intermediates...

PROCESSES FOR PREPARATION OF 9,11 EPOXY STEROIDS AND INTERMEDIATES...

SYNTHESIS OF DIARYL PYRAZOLES

Processes for preparation of 9, 11-epoxy steroids and intermediates...

Processes for preparation of 9,11-epoxy steroids and intermediates...

Process for preparation of 9, 11-epoxy steroids and intermediates u...

Processes for preparation of 9, 11-epoxy steroids and intermediates...

Synthesis of diaryl pyrazoles

Method for preparing benzenesulfonyl compounds

Processes for preparation of 9,11-epoxy steroids and intermediates...

Processes for preparation of 9,11-epoxy steroids and intermediates...

Process for preparation of 9,11-epoxy steroids and intermediates us...

Processes for preparation of 9-11, epoxy steroids and intermediates...

Processes for preparation of 9,11- epoxy steroids and intermediates...

5β-cyano-substituted steroid compounds