Growing community of inventors

Lake Havasu City, AZ, United States of America

Michael C Walgren

Average Co-Inventor Count = 2.25

ph-index = 5

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 = 108

Michael C Walgren ↔ Cody L Sewell (6 patents)Michael C Walgren ↔ Brant Douglas Kukuk (3 patents)Michael C Walgren ↔ Vernon T Stellman (3 patents)Michael C Walgren ↔ L Shane Ingram (3 patents)Michael C Walgren ↔ Todd J Streck (2 patents)Michael C Walgren ↔ David J Diel (2 patents)Michael C WalgrenMichael C Walgren (12 patents)Cody L SewellCody L Sewell (76 patents)Brant Douglas KukukBrant Douglas Kukuk (26 patents)Vernon T StellmanVernon T Stellman (13 patents)L Shane IngramL Shane Ingram (5 patents)Todd J StreckTodd J Streck (2 patents)David J DielDavid J Diel (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. The Charles Machine Works, Inc. (12 from 365 patents)


12 patents:

1. D1089341 - Microtrencher blade

2. D1040197 - Microtrencher blade

3. D1032318 - Tooth for use with a microtrenching blade

4. D925626 - Microtrencher blade

5. D925627 - Microtrencher blade

6. D925628 - Microtrencher blade

7. D796291 - Microtrenching blade and tooth

8. D796292 - Microtrenching blade and tooth

9. D795932 - Tooth

10. D640291 - Conical cutting element

11. D640290 - Micro-trenching blade

12. D640292 - Micro-trenching blade

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as of
1/2/2026
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