Patents by Inventor Cal H. Weeks

Cal H. Weeks 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).

  • PORE STRUCTURE FOR SEPARATION OF ADENO-ASSOCIATED VIRUSES (AAVS) FROM THEIR AGGREGATES
    Publication number: 20260008027
    Abstract: Disclosed are methods of making a porous particle material for use as stationary media and related chromatographic separation devices utilizing the disclosed stationary media. The porous particle material has a pore volume that yields improved stability and column lifetime, and additionally has a modified surface, resulting in a surface modified porous particle material that improves the separation of AAVs from their aggregates in the samples to be tested.
    Type: Application
    Filed: September 12, 2025
    Publication date: January 8, 2026
    Inventors: Michael Chitty, Tivadar Farkas, Ismail Rustamov, James Song, Zhengfei Sun, Cal H. Weeks, Shilin Lok Yee Cheung
  • Pore structure for separation of adeno-associated viruses (AAVS) from their aggregates
    Patent number: 12434218
    Abstract: Disclosed are methods of making a porous particle material for use as stationary media and related chromatographic separation devices utilizing the disclosed stationary media. The porous particle material has a pore volume that yields improved stability and column lifetime, and additionally has a modified surface, resulting in a surface modified porous particle material that improves the separation of AAVs from their aggregates in the samples to be tested.
    Type: Grant
    Filed: March 8, 2024
    Date of Patent: October 7, 2025
    Assignee: Phenomenex, Inc.
    Inventors: Michael Chitty, Tivadar Farkas, Ismail Rustamov, James Song, Zhengfei Sun, Cal H. Weeks, Shilin Lok Yee Cheung
  • PORE STRUCTURE FOR SEPARATION OF ADENO-ASSOCIATED VIRUSES (AAVS) FROM THEIR AGGREGATES
    Publication number: 20250170553
    Abstract: Disclosed are methods of making a porous particle material for use as stationary media and related chromatographic separation devices utilizing the disclosed stationary media. The porous particle material has a pore volume that yields improved stability and column lifetime, and additionally has a modified surface, resulting in a surface modified porous particle material that improves the separation of AAVs from their aggregates in the samples to be tested.
    Type: Application
    Filed: March 8, 2024
    Publication date: May 29, 2025
    Inventors: Michael Chitty, Tivadar Farkas, Ismail Rustamov, James Song, Zhengfei Sun, Cal H. Weeks, Shilin Lok Yee Cheung