IP Library › Granted Patent US 12,304,096
Granted Patent B2
US 12,304,096 · App. 16/928,502 · Granted May 20, 2025

Razor blades

Inventors: John Chadwick (Pelham, NH); Neville Sonnenberg (Newton, MA)
Assignee: The Gillette Company LLC
B26B21/60B26B21/4068C08J7/02B05D3/107B05D5/083B05D2202/15B05D2506/15
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Quick Facts
Patent No.
US 12,304,096
App. No.
16/928,502
Granted
May 20, 2025
Kind
B2
Abstract

The invention discloses a novel solution and process comprising a modified solvent for providing enhanced blade edge attributes.

Claims (5)

1. A solution for thinning a coating on a plurality of razor blades, said solution comprising one or more defluorination compounds, said one or more defluorination compounds comprising C 14 F n , wherein n=10 to 23, wherein said solution comprises a yellow color due, at least in part, to the one or more defluorination compounds, said yellow color indicating said solution is in an ideal state for thinning said coating.

2. The solution of claim 1 , wherein said one or more defluorination compounds comprise one or more of the following compounds: C 14 F 10 , C 14 F 14 , or C 14 F 18 , or any combination thereof.

3. The solution of claim 1 , wherein a concentration of any one of the one or more defluorination compounds in the solution is less than or equal to about one part per million.

4. The solution of claim 1 , wherein a concentration of said one or more defluorination compounds comprising C 14 F n ranges from about 0.05% to about 3%.

5. The solution of claim 2 , wherein a concentration of said C 14 F 18 compound in said solution is about 0.05% to about 1.0%, a concentration of said C 14 F 14 compound in said solution is about 0.05% to about 1.0%, and a concentration of said C 14 F 10 compound in said solution is about 0.05% to about 1.0%.

Continuity (2)
Continuation 15431553 · Feb 13, 2017
Related Publication 20200338771A1 · Oct 29, 2020
References Cited (41)
US 3071856A · Fischbein · 1963 [cited by applicant]
US 3608473A · Kearn et al. · 1971 [cited by applicant]
US 3949067A · Gibbs · 1976 [cited by applicant]
US 4820884A · Weigert · 1989 [cited by applicant]
US 5384345A · Naton · 1995 [cited by examiner]
US 5477756A · Trankiem et al. · 1995 [cited by applicant]
US 5985459A · Kwiecien · 1999 [cited by examiner]
US 7060367B2 · Yamada et al. · 2006 [cited by applicant]
US 10011030B1 · Slattery · 2018 [cited by examiner]
US 10766157B2 · Chadwick · 2020 [cited by examiner]
US 10821619B2 · Madeira et al. · 2020 [cited by applicant]
US 20020043334A1 · Johnson · 2002 [cited by examiner]
US 20020161014A1 · Sadhu · 2002 [cited by examiner]
US 20050155460A1 · Trankiem · 2005 [cited by applicant]
US 20070044248A1 · Bratescu et al. · 2007 [cited by applicant]
US 20070062047A1 · Zhuk · 2007 [cited by applicant]
US 20070227009A1 · Zhuk et al. · 2007 [cited by applicant]
US 20090139547A1 · Park · 2009 [cited by applicant]
US 20140101945A1 · Wang et al. · 2014 [cited by applicant]
US 20160001456A1 · Duff, Jr. et al. · 2016 [cited by applicant]
US 20160096281A1 · Hejmowski et al. · 2016 [cited by applicant]
US 20160096282A1 · Doyle et al. · 2016 [cited by applicant]
US 20160239727A1 · Trissel · 2016 [cited by examiner]
US 20180230320A1 · Chadwick et al. · 2018 [cited by applicant]
US 20200353504A1 · Yu et al. · 2020 [cited by applicant]
US 20200391398A1 · Chadwick et al. · 2020 [cited by applicant]
US 20210252727A1 · Pandis et al. · 2021 [cited by applicant]
US 20220298367A1 · Chadwick et al. · 2022 [cited by applicant]
CN 1910018A · 2007 [cited by applicant]
EP 1704026A1 · 2006 [cited by applicant]
EP 3616800A1 · 2020 [cited by applicant]
GB 1230567A · 1971 [cited by applicant]
WO 2010081119A1 · 2010 [cited by applicant]
All Office Actions, U.S. Appl. No. 15/431,553. [cited by applicant]
All Office Actions, U.S. Appl. No. 15/431,566. [cited by applicant]
All Office Actions, U.S. Appl. No. 16/932,282. [cited by applicant]
All Office Actions, U.S. Appl. No. 16/407,715. [cited by applicant]
https ://www.chemicalbook.com/Chemical ProductProperty EN_ C827 52208 .htm (Year: 2017). [cited by applicant]
International Search Report and Written Opinion; Application Ser. No.PCT/US2018/016980; dated May 14, 2018. 14 pages. [cited by applicant]
All Office Actions; U.S. Patent Application U.S. Appl. No. 17/832,992, filed on Jun. 6, 2022. [cited by applicant]
Parr Instrument Company, “Series 4560 Mini Reactors, 100-600 ml”https://www.parrinst.com/products/stirred-reactors/series-4560-100-600-ml-mini-reactors/» Nov. 28, 2011, 1 Page. [cited by applicant]