Growing community of inventors

Snyder, TX, United States of America

Don M Drum

Average Co-Inventor Count = 1.33

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 = 15

Don M DrumDavid J Napolitano (1 patent)Don M DrumDon M Drum (2 patents)David J NapolitanoDavid J Napolitano (41 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Other (2 from 832,912 patents)


2 patents:

1. 8715098 - Golf swing training device

2. 6047754 - Device for mounting snow chains on tires

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as of
1/13/2026
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