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Plumsteadville, PA, United States of America

Derek Mohr

Average Co-Inventor Count = 1.00

ph-index = 1

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 = 4

Derek MohrDerek Mohr (3 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Malmark Inc. (2 from 9 patents)

2. Malmark Bells, Inc. (1 from 1 patent)


3 patents:

1. 11900906 - Bell and hammer rotational device

2. 11164552 - Bell and hammer rotational device

3. 8669450 - Handbell and coating method

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as of
1/12/2026
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