Growing community of inventors

Glenview, IL, United States of America

Mark D Duennes

Average Co-Inventor Count = 1.23

ph-index = 8

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 = 141

Mark D DuennesJames P Orrico (1 patent)Mark D DuennesJennifer J Schuebel (1 patent)Mark D DuennesAl Uzum (1 patent)Mark D DuennesWilliam K Szymber (1 patent)Mark D DuennesMark D Duennes (9 patents)James P OrricoJames P Orrico (30 patents)Jennifer J SchuebelJennifer J Schuebel (1 patent)Al UzumAl Uzum (1 patent)William K SzymberWilliam K Szymber (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. S-B Power Tool Company (5 from 90 patents)

2. S-B Power Tool Corporation (3 from 24 patents)

3. 5-Bpower Tool Company (1 from 1 patent)


9 patents:

1. D477510 - Electric powered rotary hand tool

2. D477202 - Electric powered rotary hand tool

3. D459176 - Hand-held rotary tool

4. 6244796 - Removable guide attachment apparatus

5. D439124 - Right angle attachment for a rotary power tool

6. D420159 - Work lamp

7. D414668 - Hand-held rotary tool

8. D403455 - Work lamp

9. D364790 - Hand held rotary cutting tool

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as of
1/18/2026
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