Growing community of inventors

Ben Lomond, CA, United States of America

Christopher T Pietrzak

Average Co-Inventor Count = 2.51

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 = 148

Christopher T PietrzakScott R Allen (10 patents)Christopher T PietrzakJulio Valencia (9 patents)Christopher T PietrzakAllen A Bischofberger (6 patents)Christopher T PietrzakMichael W Lowe (5 patents)Christopher T PietrzakScott S Whitesell (3 patents)Christopher T PietrzakAlexander J Szela (3 patents)Christopher T PietrzakJames R Penny (3 patents)Christopher T PietrzakMichael J Musal (1 patent)Christopher T PietrzakJoseph D Tomascheski (1 patent)Christopher T PietrzakAlexander J Szella (0 patent)Christopher T PietrzakChristopher T Pietrzak (18 patents)Scott R AllenScott R Allen (12 patents)Julio ValenciaJulio Valencia (10 patents)Allen A BischofbergerAllen A Bischofberger (9 patents)Michael W LoweMichael W Lowe (19 patents)Scott S WhitesellScott S Whitesell (14 patents)Alexander J SzelaAlexander J Szela (7 patents)James R PennyJames R Penny (7 patents)Michael J MusalMichael J Musal (16 patents)Joseph D TomascheskiJoseph D Tomascheski (1 patent)Alexander J SzellaAlexander J Szella (0 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Bell Sports, Inc. (15 from 237 patents)

2. Riddell, Inc. (2 from 133 patents)


18 patents:

1. 12471656 - System and method for forming protective sports equipment for a customer

2. 12089685 - Protective helmet with multiple energy management liners

3. 11889883 - System and method for forming a protective helmet for a customer's head

4. 11839257 - Helmet comprising a segmented shell

5. 11758965 - Helmet with integrated shoulder pad

6. 11589631 - Helmet with integrated shoulder pad

7. 11510453 - Protective bicycle helmet with internal ventilation fit system comprising expanded connectors

8. 11419383 - System and method for custom forming a protective helmet for a customer's head

9. 11213090 - Helmet comprising a segmented shell

10. 10948898 - System and method for custom forming a protective helmet for a customer's head

11. 10939721 - Helmet with integrated shoulder pad

12. 10602795 - Helmet comprising a segmented shell

13. 10463099 - Protective helmet with multiple energy management liners

14. 10376010 - Shock absorbing helmet

15. 10357077 - Protective bicycle helmet with internal ventilation system

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as of
12/6/2025
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