Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Dawn N. Lock — 5 Patents

EUEcolab Usa: 5 patents #305 of 1,442Top 25%
Inver Grove Heights, MN: #77 of 287 inventorsTop 30%
Minnesota: #13,602 of 52,454 inventorsTop 30%
Overall (All Time): #992,794 of 4,157,543Top 25%
5 Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
9670438 Composition and method for the treatment of sunscreen stains in textiles Stephen B. Christensen, Jessica Bull, Kirsten M. Weeks, Joanna A. Pham 2017-06-06
9222058 Cleaning composition and method for removal of sunscreen stains Stephan Hubig, Kim R. Smith, Joshua A. Ackerman 2015-12-29
8759272 Treatment of non-trans fats, fatty acids and sunscreen stains with a chelating agent Victor Fuk-Pong Man, Yvonne Marie Killeen, Stephen B. Christensen, Joanna A. Pham 2014-06-24
8361950 Treatment of non-trans fats, fatty acids and sunscreen stains with a chelating agent Victor Fuk-Pong Man, Yvonne Marie Killeen, Stephen B. Christensen, Joanna A. Pham 2013-01-29
8314057 Laundry composition for treatment of sunscreen stains based on extended chain nonionic surfactants Stephen B. Christensen, Joanna A. Pham, Victor Fuk-Pong Man, Michael Charles DeNoma, Yvonne Marie Killeen +1 more 2012-11-20