Growing community of inventors

Dublin, PA, United States of America

David M Hansen

Average Co-Inventor Count = 1.20

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 = 5

David M HansenRichard B Ernest (1 patent)David M HansenDavid M Hansen (3 patents)Richard B ErnestRichard B Ernest (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Penn Engineering & Manufacturing Corp. (3 from 59 patents)


3 patents:

1. D287221 - Portable press

2. 4555928 - Press having a leveraged linkage assembly mechanism

3. 4393684 - Press having a linkage mechanism connectable and disconnectable from a

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as of
12/16/2025
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