Growing community of inventors

Ames, IA, United States of America

Donald F Handorf

Average Co-Inventor Count = 5.45

ph-index = 8

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 = 132

Donald F HandorfBrian W Carr (13 patents)Donald F HandorfScott A Sporrer (10 patents)Donald F HandorfNick Merfeld (10 patents)Donald F HandorfPeter B Moore (9 patents)Donald F HandorfRyan D Jensen (5 patents)Donald F HandorfGary W Clem (3 patents)Donald F HandorfCurtis R Hammer (2 patents)Donald F HandorfChester S Creswick (2 patents)Donald F HandorfArlan W Sandvik (2 patents)Donald F HandorfMark D Mathis (2 patents)Donald F HandorfTimothy A Schroeder (2 patents)Donald F HandorfKevin J Alphs (1 patent)Donald F HandorfDonald F Handorf (13 patents)Brian W CarrBrian W Carr (20 patents)Scott A SporrerScott A Sporrer (17 patents)Nick MerfeldNick Merfeld (12 patents)Peter B MoorePeter B Moore (11 patents)Ryan D JensenRyan D Jensen (5 patents)Gary W ClemGary W Clem (3 patents)Curtis R HammerCurtis R Hammer (16 patents)Chester S CreswickChester S Creswick (2 patents)Arlan W SandvikArlan W Sandvik (2 patents)Mark D MathisMark D Mathis (2 patents)Timothy A SchroederTimothy A Schroeder (2 patents)Kevin J AlphsKevin J Alphs (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Gary W. Clem, Inc. (13 from 21 patents)


13 patents:

1. 7398636 - Method and apparatus for continuously harvesting grain from a row of mature grain plants comprised of plant segments and alley segments

2. 7337733 - Distance measuring device for planter

3. 7111567 - Method and apparatus for planting seed in a seed research plot

4. 6848243 - Method and apparatus for continuously harvesting grain from a row of mature grain plants comprised of plant segments and alley segments

5. 6832567 - Method and apparatus for planting seed in a seed research plot

6. 6749810 - Method and apparatus for presenting grain for NIR spectography examination

7. 6505124 - GPS system to provide planter tripping for crop research plots

8. 6474500 - Method and means for planting field seeds in rows with different varieties of seeds

9. 6330767 - Unloading system for particulate materials bins

10. 6319118 - Seed package handling system for test plot combine

11. 6293863 - Package conveyor system for seed test plot combines

12. 6230476 - Row crop gathering belt for combine heads

13. 5664402 - Method and means for harvesting and packaging seeds

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as of
12/8/2025
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