Inventor · disambiguated record
Christopher T. Pietrzak
Also filed as: PIETRZAK CHRISTOPHER · PIETRZAK CHRISTOPHER T · PIETRZAK CHRISTOPHER THOMAS
38 granted patents·13 pending applications·322 citations·filing 2004–2025
97Inventor score
Files withBELL SPORTS INC27SPECIALIZED BICYCLE COMPONENTS INC13MIPS AB7DELAP CHRISTOPHER K1EASTON TECHNICAL PRODUCTS INC1
Top patents by PatentIndex Score
51 records- 0198US11419383B2System and method for custom forming a protective helmet for a customer's headBELL SPORTS INC·Filed 2021·Granted Aug 23, 2022·14 cites·28 claims
- 0298US10948898B1System and method for custom forming a protective helmet for a customer's headBELL SPORTS INC·Filed 2020·Granted Mar 16, 2021·37 cites·25 claims
- 0397US10159296B2System and method for custom forming a protective helmet for a customer's headBELL SPORTS INC·Filed 2014·Granted Dec 25, 2018·54 cites·37 claims
- 0496US10463099B2Protective helmet with multiple energy management linersBELL SPORTS INC·Filed 2016·Granted Nov 5, 2019·25 cites·14 claims
- 0596US8006711B2Trekking pole clamp and methodsEASTON TECHNICAL PRODUCTS INC·Filed 2009·Granted Aug 30, 2011·68 cites·13 claims
- 0694US10602795B2Helmet comprising a segmented shellBELL SPORTS INC·Filed 2018·Granted Mar 31, 2020·14 cites·20 claims
- 0791US10376010B2Shock absorbing helmetBELL SPORTS INC·Filed 2016·Granted Aug 13, 2019·13 cites·20 claims
- 0890US10357077B2Protective bicycle helmet with internal ventilation systemBELL SPORTS INC·Filed 2016·Granted Jul 23, 2019·9 cites·20 claims
- 0989US12127624B2Bicycle helmet with eyewear retentionSPECIALIZED BICYCLE COMPONENTS INC·Filed 2022·Granted Oct 29, 2024·2 cites·16 claims
- 1088US12256796B2HelmetMIPS AB·Filed 2022·Granted Mar 25, 2025·1 cites·19 claims
- 1188US8776813B2Tent pole connection system and methodsDELAP CHRISTOPHER K·Filed 2010·Granted Jul 15, 2014·14 cites·13 claims
- 1287US12471656B2System and method for forming protective sports equipment for a customerBELL SPORTS INC·Filed 2023·Granted Nov 18, 2025·0 cites·26 claims
- 1386US2024180285A1System and method for forming protective sports equipment for a customerBELL SPORTS INC·Filed 2024·Application pending·0 cites
- 1485US11839257B2Helmet comprising a segmented shellBELL SPORTS INC·Filed 2021·Granted Dec 12, 2023·1 cites·16 claims
- 1583USD1050611SHelmetSPECIALIZED BICYCLE COMPONENTS INC·Filed 2022·Granted Nov 5, 2024·10 cites·1 claims
- 1683US11589631B2Helmet with integrated shoulder padBELL SPORTS INC·Filed 2021·Granted Feb 28, 2023·1 cites·13 claims
- 1783US9414636B2Protective bicycle helmet with internal ventilation systemBELL SPORTS INC·Filed 2013·Granted Aug 16, 2016·12 cites·18 claims
- 1882US11889883B2System and method for forming a protective helmet for a customer's headBELL SPORTS INC·Filed 2022·Granted Feb 6, 2024·0 cites·27 claims
- 1981USD1010231SHelmetSPECIALIZED BICYCLE COMPONENTS INC·Filed 2021·Granted Jan 2, 2024·9 cites·1 claims
- 2079US10939721B2Helmet with integrated shoulder padBELL SPORTS INC·Filed 2018·Granted Mar 9, 2021·3 cites·4 claims
- 2178US2025151835A1System and method for forming protective sports equipment for a customerBELL SPORTS INC·Filed 2025·Application pending·0 cites
- 2276US12426661B2Bicycle helmet with eyewear retentionSPECIALIZED BICYCLE COMPONENTS INC·Filed 2024·Granted Sep 30, 2025·0 cites·20 claims
- 2375US2025374987A1Bicycle helmet with modular impact absorbing structuresSPECIALIZED BICYCLE COMPONENTS INC·Filed 2025·Application pending·0 cites
- 2474US2023172304A1Helmet with integrated shoulder padBELL SPORTS INC·Filed 2023·Application pending·0 cites
- 2574US2024398056A1Protective helmet with multiple energy management linersBELL SPORTS INC·Filed 2024·Application pending·0 cites
- 2673US7203972B2Strap adjustment assemblySPECIALIZED BICYCLE COMPONENTS·Filed 2004·Granted Apr 17, 2007·16 cites·16 claims
- 2773US2025331597A1Systems and Methods for Vented HelmetsSPECIALIZED BICYCLE COMPONENTS INC·Filed 2025·Application pending·0 cites
- 2869US8528577B2Shock absorbing system for trekking polesPIETRZAK CHRISTOPHER T·Filed 2010·Granted Sep 10, 2013·7 cites·19 claims
- 2967US11510453B2Protective bicycle helmet with internal ventilation fit system comprising expanded connectorsBELL SPORTS INC·Filed 2019·Granted Nov 29, 2022·1 cites·20 claims
- 3067US9549583B2Helmet with integrated electronic componentsBELL SPORTS INC·Filed 2014·Granted Jan 24, 2017·4 cites·7 claims
- 3166US11758965B2Helmet with integrated shoulder padBELL SPORTS INC·Filed 2020·Granted Sep 19, 2023·0 cites·17 claims
- 3264US12414597B2Bicycle helmet with modular impact absorbing structuresSPECIALIZED BICYCLE COMPONENTS INC·Filed 2022·Granted Sep 16, 2025·0 cites·19 claims
- 3364US11963570B2Helmet padMIPS AB·Filed 2019·Granted Apr 23, 2024·2 cites·15 claims
- 3464USD1021272SBicycle helmetSPECIALIZED BICYCLE COMPONENTS INC·Filed 2021·Granted Apr 2, 2024·3 cites·1 claims
- 3564US11213090B2Helmet comprising a segmented shellBELL SPORTS INC·Filed 2020·Granted Jan 4, 2022·0 cites·20 claims
- 3663US12369672B2Systems and methods for vented helmetsSPECIALIZED BICYCLE COMPONENTS INC·Filed 2022·Granted Jul 29, 2025·0 cites·15 claims
- 3761US2019269194A1System and method for custom forming a protective helmet for a customer's headBELL SPORTS INC·Filed 2018·Application pending·0 cites
- 3860US11957200B2HelmetMIPS AB·Filed 2019·Granted Apr 16, 2024·0 cites·20 claims
- 3959US12089685B2Protective helmet with multiple energy management linersBELL SPORTS INC·Filed 2019·Granted Sep 17, 2024·0 cites·20 claims
- 4058US2021169166A1ConnectorMIPS AB·Filed 2018·Application pending·0 cites
- 4157US2023086118A1Protective bicycle helmet with internal ventilation fit system comprising expanded connectorsBELL SPORTS INC·Filed 2022·Application pending·0 cites
- 4257US2023371640A1Strap Systems and Methods for Vented HelmetsSPECIALIZED BICYCLE COMPONENTS INC·Filed 2023·Application pending·0 cites
- 4355US11944150B2HelmetMIPS AB·Filed 2019·Granted Apr 2, 2024·0 cites·22 claims
- 4454US11771167B2ConnectorMIPS AB·Filed 2019·Granted Oct 3, 2023·0 cites·19 claims
- 4551US12127623B2Connector with a deformable retainerMIPS AB·Filed 2019·Granted Oct 29, 2024·0 cites·18 claims
- 4647USD1021273SBicycle helmetSPECIALIZED BICYCLE COMPONENTS INC·Filed 2021·Granted Apr 2, 2024·1 cites·1 claims
- 4747USD992217SBicycle helmetSPECIALIZED BICYCLE COMPONENTS INC·Filed 2021·Granted Jul 11, 2023·1 cites·1 claims
- 4846US2017188649A1Helmet with boundary nub and elastomer retainersBELL SPORTS INC·Filed 2016·Application pending·0 cites
- 4946US2017112227A1Helmet having a chin bar collarBELL SPORTS INC·Filed 2016·Application pending·0 cites
- 5037US2017127746A1Helmet with mounted cameraBELL SPORTS INC·Filed 2017·Application pending·0 cites
Showing the top 50 of 51 patent records by PatentIndex Score.
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