Growing community of inventors

Beaver Dam, WI, United States of America

Leon Paul Erdman

Average Co-Inventor Count = 1.60

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 = 39

Leon Paul Erdman ↔ Jay H Olson (1 patent)Leon Paul Erdman ↔ James W Hall (1 patent)Leon Paul Erdman ↔ John R Cerny (1 patent)Leon Paul Erdman ↔ Ronald Edward Rohren (1 patent)Leon Paul Erdman ↔ James William Hall (1 patent)Leon Paul Erdman ↔ Jay Harold Olson (1 patent)Leon Paul Erdman ↔ Jr Cerny John Robert (1 patent)Leon Paul ErdmanLeon Paul Erdman (2 patents)Jay H OlsonJay H Olson (22 patents)James W HallJames W Hall (13 patents)John R CernyJohn R Cerny (3 patents)Ronald Edward RohrenRonald Edward Rohren (1 patent)James William HallJames William Hall (1 patent)Jay Harold OlsonJay Harold Olson (1 patent)Jr Cerny John RobertJr Cerny John Robert (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Deere & Company (2 from 8,482 patents)

2. Ronald Edward Rohren (0 patent)

3. John Robert, Jr. Cerny (0 patent)

4. Leon Paul Erdman (0 patent)

5. Jay Harold Olson (0 patent)

6. James William Hall (0 patent)


2 patents:

1. 4887420 - Modular mower deck with light-weight housing

2. 3948025 - Implement draft frame

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as of
12/28/2025
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