ALEXANDRIA, Va., March 3 -- United States Patent no. D1,115,568, issued on March 3, was assigned to BYK Gardner GmbH (Germany).
"Spectral photometer" was invented by Heinrich Henssler (Schwabisch Gmund, Germany), Martin Schultheiss (Schwabisch Gmund, Germany) and Karin Patricia Anger-Marx (Steinheim, Germany).
The patent was filed on Nov. 18, 2021, under Application No. D/790,317.
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