Growing community of inventors

Port Byron, IL, United States of America

Robert Lee Day

Average Co-Inventor Count = 4.00

ph-index = 2

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 = 32

Robert Lee DayRyan Patrick Mackin (1 patent)Robert Lee DayRandall A Maro (1 patent)Robert Lee DayPeter R Nedved (1 patent)Robert Lee DayDale H Killen (1 patent)Robert Lee DayCorwin Marcus Raymond Puryk (1 patent)Robert Lee DayMark Edward Payne (1 patent)Robert Lee DayBrian Mark Lobdell (1 patent)Robert Lee DayJanet Rose Maas (1 patent)Robert Lee DayLing Z Zeng (1 patent)Robert Lee DayGarrett M Stroot (1 patent)Robert Lee DayRobert Lee Day (3 patents)Ryan Patrick MackinRyan Patrick Mackin (42 patents)Randall A MaroRandall A Maro (28 patents)Peter R NedvedPeter R Nedved (9 patents)Dale H KillenDale H Killen (9 patents)Corwin Marcus Raymond PurykCorwin Marcus Raymond Puryk (8 patents)Mark Edward PayneMark Edward Payne (2 patents)Brian Mark LobdellBrian Mark Lobdell (2 patents)Janet Rose MaasJanet Rose Maas (1 patent)Ling Z ZengLing Z Zeng (1 patent)Garrett M StrootGarrett M Stroot (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Deere & Company (3 from 8,513 patents)

2. Ryan Patrick Mackin (0 patent)

3. Robert Lee Day (0 patent)

4. Mark Edward Payne (0 patent)


3 patents:

1. D799714 - Centrifugal fan housing

2. 7473168 - Conveyor feeder house chain slat

3. 6979261 - Dust reducing airflow diverter for combine

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as of
1/18/2026
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