Growing community of inventors

Peoria, IL, United States of America

David B Parzynski

Average Co-Inventor Count = 2.29

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 = 68

David B Parzynski ↔ Thomas Marshall Congdon (12 patents)David B Parzynski ↔ Nathan Richard Bjerke (3 patents)David B Parzynski ↔ Eric T Sinn (1 patent)David B Parzynski ↔ Corey Michael Wells (1 patent)David B Parzynski ↔ Doug Serrurier (1 patent)David B Parzynski ↔ Brandon Hammig McCaffrey (1 patent)David B Parzynski ↔ William Jay Ulrich, Iv (1 patent)David B ParzynskiDavid B Parzynski (13 patents)Thomas Marshall CongdonThomas Marshall Congdon (109 patents)Nathan Richard BjerkeNathan Richard Bjerke (58 patents)Eric T SinnEric T Sinn (84 patents)Corey Michael WellsCorey Michael Wells (30 patents)Doug SerrurierDoug Serrurier (13 patents)Brandon Hammig McCaffreyBrandon Hammig McCaffrey (13 patents)William Jay Ulrich, IvWilliam Jay Ulrich, Iv (8 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Caterpillar Inc. (13 from 9,471 patents)


13 patents:

1. D1040868 - Retention component

2. 11746506 - System for securing bits against rotation

3. D976966 - Bit for a ground engaging machine implement

4. D963718 - Cutting tool

5. D958199 - Bit for a ground engaging machine implement

6. D941887 - Bit for a ground engaging machine implement

7. D938999 - Cutting tool holder

8. 11149416 - System for securing bits against rotation

9. D924944 - Bit for a ground engaging machine implement

10. D920401 - Cutting tool

11. D907072 - Bit for a ground engaging machine implement

12. D890816 - Bit for a ground engaging machine implement

13. 10590632 - System for securing bits against rotation

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1/2/2026
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