Growing community of inventors

Bettendorf, IA, United States of America

Donald Keith Landphair

Average Co-Inventor Count = 2.83

ph-index = 23

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 = 1,076

Donald Keith LandphairJames Z Liu (9 patents)Donald Keith LandphairLawrence D Green (7 patents)Donald Keith LandphairKeith F Woodruff (5 patents)Donald Keith LandphairMichael E Frasier (5 patents)Donald Keith LandphairDouglas P Brown (5 patents)Donald Keith LandphairMyron L McCunn (5 patents)Donald Keith LandphairWilliam R Lundie (5 patents)Donald Keith LandphairFrank D Tenne (5 patents)Donald Keith LandphairRichard A DePauw (5 patents)Donald Keith LandphairJeffrey A Hoffman (5 patents)Donald Keith LandphairPatrick D Holverson (5 patents)Donald Keith LandphairNathan Albert Mariman (4 patents)Donald Keith LandphairJames Randall Peterson (4 patents)Donald Keith LandphairJason D Walter (4 patents)Donald Keith LandphairRichard M Neyrinck (4 patents)Donald Keith LandphairRobert Wallace Martin (3 patents)Donald Keith LandphairCharles T Graham (3 patents)Donald Keith LandphairChristopher Allen Myers (3 patents)Donald Keith LandphairElijah Beckham Garner (2 patents)Donald Keith LandphairDavid James Rylander (2 patents)Donald Keith LandphairJames Joseph Phelan (2 patents)Donald Keith LandphairBradley John Meyer (2 patents)Donald Keith LandphairRichard Hugo Clark (2 patents)Donald Keith LandphairGordon Lee Salley (2 patents)Donald Keith LandphairMark Steven Sommer (2 patents)Donald Keith LandphairPatrick E Pinkston (2 patents)Donald Keith LandphairChris Warren Foster (2 patents)Donald Keith LandphairChad Erik Braden (2 patents)Donald Keith LandphairWilliam G Bultinck (2 patents)Donald Keith LandphairBrandon M McDonald (1 patent)Donald Keith LandphairPaul Reed Riewerts (1 patent)Donald Keith LandphairDavid Walter Gregor (1 patent)Donald Keith LandphairJames Irwin Lodico (1 patent)Donald Keith LandphairGary Deloy Luxon (1 patent)Donald Keith LandphairScott Charles McCartney (1 patent)Donald Keith LandphairDonald Raymond Wisor (1 patent)Donald Keith LandphairLowell H Neumeyer (1 patent)Donald Keith LandphairJeffrey C Schick (1 patent)Donald Keith LandphairSamuel Santiago (1 patent)Donald Keith LandphairKelby J Krueger (1 patent)Donald Keith LandphairDave J Rylander (2 patents)Donald Keith LandphairThomas C Brockmann (1 patent)Donald Keith LandphairRichard M Neysinck (1 patent)Donald Keith LandphairBrianna L Heim (1 patent)Donald Keith LandphairJames P Doering (1 patent)Donald Keith LandphairDonna R Sommer, Legal Representative (1 patent)Donald Keith LandphairCristian T Prado (1 patent)Donald Keith LandphairScott Charles Mccartney (1 patent)Donald Keith LandphairPatrick Eugene Pinkston (1 patent)Donald Keith LandphairDonald Keith Landphair (39 patents)James Z LiuJames Z Liu (42 patents)Lawrence D GreenLawrence D Green (10 patents)Keith F WoodruffKeith F Woodruff (77 patents)Michael E FrasierMichael E Frasier (29 patents)Douglas P BrownDouglas P Brown (9 patents)Myron L McCunnMyron L McCunn (9 patents)William R LundieWilliam R Lundie (9 patents)Frank D TenneFrank D Tenne (8 patents)Richard A DePauwRichard A DePauw (6 patents)Jeffrey A HoffmanJeffrey A Hoffman (6 patents)Patrick D HolversonPatrick D Holverson (6 patents)Nathan Albert MarimanNathan Albert Mariman (84 patents)James Randall PetersonJames Randall Peterson (24 patents)Jason D WalterJason D Walter (16 patents)Richard M NeyrinckRichard M Neyrinck (4 patents)Robert Wallace MartinRobert Wallace Martin (12 patents)Charles T GrahamCharles T Graham (8 patents)Christopher Allen MyersChristopher Allen Myers (7 patents)Elijah Beckham GarnerElijah Beckham Garner (122 patents)David James RylanderDavid James Rylander (37 patents)James Joseph PhelanJames Joseph Phelan (27 patents)Bradley John MeyerBradley John Meyer (21 patents)Richard Hugo ClarkRichard Hugo Clark (12 patents)Gordon Lee SalleyGordon Lee Salley (10 patents)Mark Steven SommerMark Steven Sommer (7 patents)Patrick E PinkstonPatrick E Pinkston (5 patents)Chris Warren FosterChris Warren Foster (3 patents)Chad Erik BradenChad Erik Braden (2 patents)William G BultinckWilliam G Bultinck (2 patents)Brandon M McDonaldBrandon M McDonald (20 patents)Paul Reed RiewertsPaul Reed Riewerts (13 patents)David Walter GregorDavid Walter Gregor (12 patents)James Irwin LodicoJames Irwin Lodico (11 patents)Gary Deloy LuxonGary Deloy Luxon (8 patents)Scott Charles McCartneyScott Charles McCartney (8 patents)Donald Raymond WisorDonald Raymond Wisor (8 patents)Lowell H NeumeyerLowell H Neumeyer (7 patents)Jeffrey C SchickJeffrey C Schick (5 patents)Samuel SantiagoSamuel Santiago (3 patents)Kelby J KruegerKelby J Krueger (2 patents)Dave J RylanderDave J Rylander (2 patents)Thomas C BrockmannThomas C Brockmann (1 patent)Richard M NeysinckRichard M Neysinck (1 patent)Brianna L HeimBrianna L Heim (1 patent)James P DoeringJames P Doering (1 patent)Donna R Sommer, Legal RepresentativeDonna R Sommer, Legal Representative (1 patent)Cristian T PradoCristian T Prado (1 patent)Scott Charles MccartneyScott Charles Mccartney (1 patent)Patrick Eugene PinkstonPatrick Eugene Pinkston (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Deere & Company (38 from 8,504 patents)

2. American Cyanamid (3 from 33 patents)

3. Other (1 from 832,912 patents)


39 patents:

1. 12127497 - Planter row unit downforce control with ground view sensor

2. 11665990 - Work vehicle with ground support unit having non-treaded area aligned with row unit component

3. 11490560 - Fertilizer meter with motor control and method thereof

4. 11202404 - Planter row unit downforce control with ground view sensor

5. 10143128 - Soil moisture-based planter downforce control

6. 9883626 - Controlling an agricultural vehicle based on sensed inputs

7. 9801332 - System and method for consistent depth seeding to moisture

8. 9744817 - Apparatus and method for automatic tire pressure adjustment

9. 9675004 - Soil moisture-based planter downforce control

10. 9043949 - System and method of calibrating the meter of a product distribution machine

11. 8948980 - Seeding machine for planting multiple seed varieties

12. 8863676 - Twin-row multiple variety planter and method of use

13. 8695396 - Method of calibrating the meter of a product distribution apparatus and monitoring method

14. 8577561 - Control system and method of operating a product distribution machine

15. 8522700 - Air seeder with GPS based on/off control of individual row units

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1/10/2026
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