Growing community of inventors

Omaha, NE, United States of America

Stephen W Ritchie

Average Co-Inventor Count = 21.01

ph-index = 1

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 1

Stephen W RitchieKenneth Edwin Narva (2 patents)Stephen W RitchieMichael G Koziel (2 patents)Stephen W RitchieManju Gupta (2 patents)Stephen W RitchieLaura Ann Tagliani (2 patents)Stephen W RitchieJames Wayne Bing (2 patents)Stephen W RitchieTerry EuClaire Meyer (2 patents)Stephen W RitchieRobert F Cressman, Jr (2 patents)Stephen W RitchieGuy A Cardineau (2 patents)Stephen W RitchieDavid Hondred (2 patents)Stephen W RitchieCraig D Sanders (2 patents)Stephen W RitchieMary E Hartnett Locke (2 patents)Stephen W RitchieDaniel Moellenbeck (2 patents)Stephen W RitchieDavid S Stucker (2 patents)Stephen W RitchieJoseph W Keaschall (2 patents)Stephen W RitchieEric Barbour (2 patents)Stephen W RitchieSteven Jeffrey Stelman (2 patents)Stephen W RitchieWilliam M Van Zante (2 patents)Stephen W RitchieWilas Nirunsuksiri (2 patents)Stephen W RitchieMarjorie L Rudert (2 patents)Stephen W RitchieAihua Shao (2 patents)Stephen W RitchieStephen W Ritchie (2 patents)Kenneth Edwin NarvaKenneth Edwin Narva (139 patents)Michael G KozielMichael G Koziel (71 patents)Manju GuptaManju Gupta (62 patents)Laura Ann TaglianiLaura Ann Tagliani (40 patents)James Wayne BingJames Wayne Bing (34 patents)Terry EuClaire MeyerTerry EuClaire Meyer (31 patents)Robert F Cressman, JrRobert F Cressman, Jr (28 patents)Guy A CardineauGuy A Cardineau (27 patents)David HondredDavid Hondred (25 patents)Craig D SandersCraig D Sanders (23 patents)Mary E Hartnett LockeMary E Hartnett Locke (23 patents)Daniel MoellenbeckDaniel Moellenbeck (23 patents)David S StuckerDavid S Stucker (18 patents)Joseph W KeaschallJoseph W Keaschall (18 patents)Eric BarbourEric Barbour (16 patents)Steven Jeffrey StelmanSteven Jeffrey Stelman (11 patents)William M Van ZanteWilliam M Van Zante (8 patents)Wilas NirunsuksiriWilas Nirunsuksiri (8 patents)Marjorie L RudertMarjorie L Rudert (8 patents)Aihua ShaoAihua Shao (8 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Pioneer Hi-bred International, Inc. (2 from 6,583 patents)

2. E.i. Dupont De Nemours and Company (1 from 16,338 patents)

3. Dow Agrosciences LLC (1 from 1,249 patents)


2 patents:

1. 10023921 - Corn event TC1507 and methods for detection thereof

2. 8901378 - Corn event TC1507 and methods for detection thereof

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as of
12/3/2025
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