DAVID NELSON PIERCE
Pilots at Binyon Ave, Fort Worth, TX
License number
Texas A1497148
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
3525 Binyon Ave, Fort Worth, TX 76133
Professional information
Benzenoid Derivatives Of 15-Hydroxyeicosatetraenoic Acid And Methods Of Their Use In Treating Dry Eye Disorders
US Patent:
6342525, Jan 29, 2002
Filed:
Oct 23, 2000
Appl. No.:
09/694614
Inventors:
Peter G. Klimko - Fort Worth TX
David R. Pierce - Fort Worth TX
David R. Pierce - Fort Worth TX
Assignee:
Alcon Universal Ltd. - Hunenberg
International Classification:
A01N 3710
US Classification:
514532, 514570, 560 55, 560 60, 562465, 562470
Abstract:
Benzenoid HETE derivatives and methods of their use for treating dry eye are disclosed.
Process For Preparation Of Clonidine Derivatives
US Patent:
5684156, Nov 4, 1997
Filed:
Aug 31, 1995
Appl. No.:
8/513796
Inventors:
David R. Pierce - Fort Worth TX
William D. Dean - Arlington TX
Michael E. Deason - Poway CA
William D. Dean - Arlington TX
Michael E. Deason - Poway CA
International Classification:
C07D23350, C07D22900, C07D24300, C07D23902
US Classification:
5483331
Abstract:
A novel process for preparing clonidine derivatives has been discovered which is shorter, less expensive and safer than previously known methods. A new thiourea complex has also been discovered which can be directly cyclized to produce the corresponding heterocyclic product.
Methods Of Making Indazoles
US Patent:
6998489, Feb 14, 2006
Filed:
Nov 26, 2003
Appl. No.:
10/723297
Inventors:
Raymond E. Conrow - Crowley TX, US
Pete Delgado - Fort Worth TX, US
William D. Dean - Arlington TX, US
David R. Pierce - Fort Worth TX, US
Michael S. Gaines - Fort Worth TX, US
Pete Delgado - Fort Worth TX, US
William D. Dean - Arlington TX, US
David R. Pierce - Fort Worth TX, US
Michael S. Gaines - Fort Worth TX, US
Assignee:
Alcon, Inc. - Hünenberg
International Classification:
C07D 231/56
US Classification:
5483625
Abstract:
Methods of making indazoles are described. The methods involved reacting an aromatic aldehyde with a nitrogen source to form a nitroso aromatic aldehyde. The nitroso aromatic aldehyde is reacted with a reducing agent to form an indazole which ultimately can be used to form desired indazoles which are preferably pharmaceutically active products. The process of the present invention further permits the formation of enantiomerically enriched or pure indazoles such as aminoalkyl indazoles.