Inventor
WASHINGTON RANDY PURNELL
US22 patents
⚠️ This page may combine multiple inventors who share the name “WASHINGTON RANDY PURNELL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PROCTER & GAMBLE
21 patentsUS10543156B2Jan 28, 2020
Shaping keratin fibres using 2-oxazolidinone compounds
PROCTER & GAMBLE7 citations84
US10434051B2Oct 8, 2019
Shaping keratin fibers using arabinose and ethylene carbonate
PROCTER & GAMBLE10 citations84
US10064799B2Sep 4, 2018
Shaping keratin fibres using carbonate ester
PROCTER & GAMBLE11 citations84
US10568826B2Feb 25, 2020
Shaping keratin fibres using a pretreatment and a protein crosslinking composition
PROCTER & GAMBLE8 citations83
US9956155B2May 1, 2018
Shaping keratin fibres using an amine or a diamine
PROCTER & GAMBLE10 citations83
US10729630B2Aug 4, 2020
Shaping keratin fibres using an active agent comprising at least two functional groups selected from: —C(OH)- and —C(=O)OH
PROCTER & GAMBLE7 citations82
US10195130B2Feb 5, 2019
Shaping keratin fibers using arabinose and ethylene carbonate
PROCTER & GAMBLE12 citations82
US9781988B2Oct 10, 2017
Appliance for shaping fibrous material
PROCTER & GAMBLE13 citations82
US9713369B2Jul 25, 2017
Appliance for shaping fibrous material
PROCTER & GAMBLE14 citations81
US10493016B2Dec 3, 2019
Tooth whitening product
PROCTER & GAMBLE1 citations71
US10945931B2Mar 16, 2021
Shaping keratin fibres using dialdehyde compounds
PROCTER & GAMBLE0 citations62
US9554976B2Jan 31, 2017
Tooth whitening product
PROCTER & GAMBLE1 citations61
US11103434B2Aug 31, 2021
Shaping keratin fibres using carbonate ester
PROCTER & GAMBLE0 citations51
US11096879B2Aug 24, 2021
Shaping keratin fibres using an active agent comprising a functional group selected from the group consisting of: -C(=O)-, -C(=O)-H, and -C(=O)-O-
PROCTER & GAMBLE0 citations51
US9918921B2Mar 20, 2018
Methods for shaping fibrous material and treatment compositions therefor
PROCTER & GAMBLE0 citations51
US9877559B2Jan 30, 2018
Methods for shaping fibrous material and treatment compositions therefor
PROCTER & GAMBLE1 citations51
US11154480B2Oct 26, 2021
Shaping keratin fibres using a sugar
PROCTER & GAMBLE0 citations50
US11110046B2Sep 7, 2021
Shaping keratin fibres using 2-hydroxypropane-1,2,3-tricarboxylic acid and/or 1,2,3,4-butanetetracarboxylic acid
PROCTER & GAMBLE0 citations50
US10912726B2Feb 9, 2021
Shaping keratin fibres using a reducing composition and a fixing composition
PROCTER & GAMBLE0 citations49
US11129784B2Sep 28, 2021
Shaping keratin fibres using oxoethanoic acid and/or derivatives thereof
PROCTER & GAMBLE0 citations48
US9748085B2Aug 29, 2017
Systems and methods of detecting and demonstrating heat damage to hair via evaluation of peptides
PROCTER & GAMBLE0 citations45