Method of extracting hexavalent chromium

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United States of America Patent

PATENT NO 8157982
APP PUB NO 20080087553A1
SERIAL NO

11666268

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Hexavalent chrome is extracted from a film on a workpiece which film contains hexavalent chrome and reduced by contacting the contacting workpiece with a liquid or fine particle reducing agent.

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Patent Owner(s)

Patent OwnerAddress
YOSHIDA HIDEO2-9-2 MATSUGAOKA TOKOROZAWA-SHI SAITAMA 359-1132

International Classification(s)

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  • 2006 Application Filing Year
  • C25F Class
  • 59 Applications Filed
  • 24 Patents Issued To-Date
  • 40.68 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances200620072008200920102011201220130255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Shindo, Morihisa Higashimurayama, JP 1 0
Yoshida, Hideo Tokorozawa, JP 223 1974

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Patent Citation Ranking

  • 0 Citation Count
  • C25F Class
  • 0 % this patent is cited more than
  • 13 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges5316214101 - 1011 - 2021 - 3031 - 4041 - 5061 - 700246810121416182022242628303234

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