ALEXANDRIA, Va., July 3 -- The United States Patent and Trademark Office (USPTO) published about the trademark 'PEI' in its latest official gazette. The trademark application with the serial number 99426528 was filed on Oct. 3, 2025.
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Goods and Services: 9 - High performance liquid chromatography (HPLC) column for laboratory use for analysis of positively charged polymers
International/US Class(es): 9
Mark Drawing Code: 4 - STANDARD CHARACTER MARK
Current Owner(s): SIELC Technologies Corporation 804 Seton Ct., Wheeling IL Illinois 60090 3 CORPORATION
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