Patents by Inventor CHRISTOPHER GOLKIEWICZ

CHRISTOPHER GOLKIEWICZ has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Height adjustable seat posts for bicycles and spacers for height adjustable seat posts
    Patent number: 12654794
    Abstract: Height adjustable seat posts for bicycles are described herein. An example seat post includes an upper tube and a lower tube are configured in a telescopic arrangement and moveable between at least a first position and a second position. The seat post includes an upper sealhead, a lower sealhead, a shaft coupled to the lower tube and extending through the lower sealhead and into the upper tube, and a piston in the upper tube and coupled to the shaft. The piston divides the upper tube into a first chamber between the piston and the upper sealhead and a second chamber between the piston and the lower sealhead. The seat post also includes a spacer in the second chamber between the piston and the lower sealhead to reduce a length of the height adjustable seat post in at least one of the first and second positions.
    Type: Grant
    Filed: December 12, 2023
    Date of Patent: June 16, 2026
    Assignee: SRAM, LLC
    Inventors: Charles Dunlap, Robert Moore, Kevin Jasper, Christopher Golkiewicz, Jace Doan
  • HEIGHT ADJUSTABLE SEAT POSTS FOR BICYCLES AND SPACERS FOR HEIGHT ADJUSTABLE SEAT POSTS
    Publication number: 20250187687
    Abstract: Height adjustable seat posts for bicycles are described herein. An example seat post includes an upper tube and a lower tube are configured in a telescopic arrangement and moveable between at least a first position and a second position. The seat post includes an upper sealhead, a lower sealhead, a shaft coupled to the lower tube and extending through the lower sealhead and into the upper tube, and a piston in the upper tube and coupled to the shaft. The piston divides the upper tube into a first chamber between the piston and the upper sealhead and a second chamber between the piston and the lower sealhead. The seat post also includes a spacer in the second chamber between the piston and the lower sealhead to reduce a length of the height adjustable seat post in at least one of the first and second positions.
    Type: Application
    Filed: December 12, 2023
    Publication date: June 12, 2025
    Applicant: SRAM, LLC
    Inventors: CHARLES DUNLAP, ROBERT MOORE, KEVIN JASPER, CHRISTOPHER GOLKIEWICZ, JACE DOAN