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For the Inventor, By the Inventor

Fuquay-Varina, NC, United States of America

Douglas Dean Korthals

USPTO Granted Patents = 8

 

Average Co-Inventor Count = 1.3

ph-index = 6

Forward Citations = 119(Granted Patents)


Location History:

  • Crestwood, KY (US) (2005)
  • Fuquay-Varina, NC (US) (2004 - 2017)

Company Filing History:

goldMedal8 out of 8,489 
 
Deere & Company
 patents

Years Active: 2004-2017

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8 patents (USPTO):Explore Patents
1. 9750179 - Convertible mower deck with mulch on demand actuator (2017-09-05),
2. 7458311 - Return to neutral for dual hydrostatic transmission (2008-12-02),
3. 7430861 - Shift controlled bypass orifice for hydrostatic transmission (2008-10-07),
4. 7401456 - Horizontally retractable mower deck (2008-07-22),
5. 6935106 - Neutral start mechanism for a hydrostatic transmission (2005-08-30),
6. 6868657 - Mowing machines with ergonomic hand control levers (2005-03-22),
7. 6848532 - Transmission control systems (2005-02-01),
8. 6782964 - Mower (2004-08-31),
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