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Patent and Trademark Resource Center Association

Patent and Trademark Resource Center Association

  • JOIN PTRCA!
  • Our Mission
  • Best Practices
  • Bylaws
  • Officers
  • Committees
  • PTRCA Journal
  • Resolutions
  • Esther Crawford PTRCA Distinguished Service Award (DSA)
  • Online Resources
  • Contact PTRCA
  • USPTO/PTRC Locations

Chicago, IL

Chicago Public LIbrary
Submitted by: Jean Petersen

  • We continued to stay open to the public during 2021, despite the many challenges of the Covid-19 pandemic.
  • As part of the continued restructuring of the Chicago Public Library Harold Washington Library Center, the Business/Science/Technology Unit was combined with Government Publications Department to become the Business/Science/Technology and Government Unit.
  • As a PTRC we continued to provide reference services to patrons through email, telephone, and socially distanced in-person interactions.

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  • JOIN PTRCA!
  • Our Mission
  • Best Practices
  • Bylaws
  • Officers
  • Committees
  • PTRCA Journal
  • Resolutions
  • Esther Crawford PTRCA Distinguished Service Award (DSA)
  • Online Resources
  • Contact PTRCA
  • USPTO/PTRC Locations

JPTRCA Homepage at Clemson

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Latest additions to the Directory of American Tool and Machinery Patents (DATAMP.org)

  • US-1,333,517 Pipe Wrench
  • US-7,416,657 Oil Water Coalescing Separator
  • US-983,405 Street Sweeping Machine
  • US-663,518 Mechanism for Propelling and Guiding Track Engaging Carriages
  • CA-9,544 Improvements on buggy tops

  • JOIN PTRCA!
  • Our Mission
  • Best Practices
  • Bylaws
  • Officers
  • Committees
  • PTRCA Journal
  • Resolutions
  • Esther Crawford PTRCA Distinguished Service Award (DSA)
  • Online Resources
  • Contact PTRCA
  • USPTO/PTRC Locations