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Fluorescing gel formulations and their applications

  • US 9,417,189 B2
  • Filed: 08/06/2014
  • Issued: 08/16/2016
  • Est. Priority Date: 10/08/2010
  • Status: Active Grant
First Claim
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1. A composition for determining whether a surface has been cleaned comprising:

  • from about 0.001 weight % to about 20 weight % a cationic or anionic optical brightener;

    an oppositely charged complexing agent; and

    0.05 to 0.5 weight % preservative.

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