Growing community of inventors

Pella, IA, United States of America

Karl D Maasdam

Average Co-Inventor Count = 2.86

ph-index = 4

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 = 45

Karl D Maasdam ↔ Kent L Thompson (2 patents)Karl D Maasdam ↔ Ty Hartwick (2 patents)Karl D Maasdam ↔ Oleg Khalamendik (2 patents)Karl D Maasdam ↔ Casey Dean Berg (2 patents)Karl D Maasdam ↔ Joseph W Nelson (2 patents)Karl D MaasdamKarl D Maasdam (4 patents)Kent L ThompsonKent L Thompson (47 patents)Ty HartwickTy Hartwick (19 patents)Oleg KhalamendikOleg Khalamendik (4 patents)Casey Dean BergCasey Dean Berg (4 patents)Joseph W NelsonJoseph W Nelson (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Vermeer Manufacturing Company, Inc. (4 from 470 patents)


4 patents:

1. 8732992 - Excavation machine with auto reverse

2. 8371048 - Excavation machine with auto reverse

3. D630654 - Hood of an off-highway machine

4. D614204 - Off-highway machine

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as of
1/3/2026
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