NP

Norman R. Pearson

The Dow Chemical: 14 patents #168 of 4,115Top 5%
DA Dow Agrosciences: 5 patents #338 of 1,183Top 30%
DO Dowelanco: 2 patents #63 of 212Top 30%
📍 Carmel, IN: #98 of 1,387 inventorsTop 8%
🗺 Indiana: #1,388 of 33,936 inventorsTop 5%
Overall (All Time): #208,468 of 4,157,543Top 6%
21
Patents All Time

Issued Patents All Time

Showing 1–21 of 21 patents

Patent #TitleCo-InventorsDate
10278394 Compounds derived from herbicidal carboxylic acids and tetraalkylammonium or (arylalkyl)trialkylammonium hydroxides Vincent J. Kramer, David G. Ouse, Holger Tank, Mark W. Zettler 2019-05-07
9839217 Compounds derived from herbicidal carboxylic acids and tetraalkylammonium or (arylalkyl)trialkylammonium hydroxides Vincent J. Kramer, David G. Ouse, Holger Tank, Mark W. Zettler 2017-12-12
9167810 Compounds derived from herbicidal carboxylic acids and tetraalkylammonium or (arylalkyl) trialkylammonium hydroxides Vincent J. Kramer, David G. Ouse, Holger Tank, Mark W. Zettler 2015-10-27
6329528 Process for preparing 3-(substituted phenyl)-5-thienyl or furyl)-1,2,4-triazoles and novel intermediates utilized therein Mary L. Ash, Mark W. Zettler, Duane R. Romer, John W. Hull, Jr., David E. Podhorez 2001-12-11
6265424 3-(substituted phenyl)-5-thienyl-1,2,4-triazole compounds with activity against whitefly Francis E. Tisdell, James T. Pechacek, Vidyadhar B. Hegde, Joe Raymond Schoonover, Leonard Paul Dintenfass +5 more 2001-07-24
5118832 Process for the preparation of alkyl 3-chloroanthranilates 1992-06-02
5015286 7-ethoxy-5-fluoromethyl-1,2,4-triazolo[1,5-a]-pyrimidine-2-sulfonamides Chrislyn M. Carson, William A. Kleschick 1991-05-14
5012017 Phenoxyphenoxypropionates, intermediates thereof and methods of preparation Jon A. Orvik, Anthony P. Haag, Timothy J. Adaway, Larry D. Kershner, Andrew S. Kende 1991-04-30
4983772 2,6-disubstituted anilines William A. Kleschick, Mark J. Costales, Robert J. Ehr, Ben C. Gerwick, III, deceased Meikle +2 more 1991-01-08
4979981 5-fluoromethyl-1,2,4-triazolo[1,5,-a]-pyrimidine-2-sulfonamides Chrislyn M. Carson, William A. Kleschick 1990-12-25
4959473 7-ethoxy-5-fluoromethyl-1,2,4-triazole[1,5-a]-pyrimidine-2-sulfonamindes William A. Kleschick, Chrislyn M. Carson 1990-09-25
4954163 Substituted 1,2,4-triazolo[1,5-a]pyrimidine-2-sulfonamides, compositions containing them, and their utility as herbicides William A. Kleschik, Robert J. Ehr, Mark J. Costales, Ben C. Gerwick, III, Richard W. Meikle, deceased +1 more 1990-09-04
4904301 5-Fluoromethyl-1,2,4-triazolo(1,5-A)-pyrimidines William A. Kleschick, Chrislyn M. Carson 1990-02-27
4886883 Substituted 1,2,4-triazolo[1,5-a]pyrimidine-2-sulfonyl chlorides William A. Kleschick, Robert J. Ehr, Mark J. Costales, Ben C. Gerwick, III, Richard W. Meikle, deceased +1 more 1989-12-12
4799952 Herbicidal imidazolo(1,2-a)pyrimidine-2-sulfonanilides Shannon L. Bartley, William A. Kleschick 1989-01-24
4755212 Novel substituted 1,2,4-triazolo[1,5-a]pyrimidine-2-sulfonamides and compositions and method for inhibiting pollen formation in corn William A. Kleschick, Ben C. Gerwick, III, Robert J. Ehr, William T. Monte, Richard W. Meikle, deceased +1 more 1988-07-05
4741764 Substituted 1,2,4-triazolo[1,5-a]-pyrimidine-2-sulfonamides and compositions and methods of controlling undesired vegetation and inhibiting sugar beet bolting William A. Kleschick, Ben C. Gerwick, III, Robert J. Ehr, William T. Monte, Richard W. Meikle, deceased +1 more 1988-05-03
4740233 Substituted 1,2,4-triazolo[1,5-a]-pyrimidine-2-sulfonamides and compositions and methods of controlling undesired vegetation and suppressing the nitrification of ammonium nitrogen in soil William A. Kleschick, Robert J. Ehr, Ben C. Gerwick, III, William T. Monte, Mark J. Costales +1 more 1988-04-26
4731446 Imidazo[1,2-a]pyrimidine sulfonic acids and acid halides William A. Kleschick, Shannon L. Bartley 1988-03-15
4685958 Sulfonamides derived from substituted 2-amino-1,2,4-triazolo[1,5-a]-1,3,5-triazines and compositions and methods of controlling undesired vegetation William A. Kleschick 1987-08-11
4605433 1,2,4-triazolo[1,5-a]-1,3,5-triazine-2-sulfonamides and compositions and methods of controlling undesired vegetation William A. Kleschick 1986-08-12