Polarographic sensor and method of using same

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5728290
SERIAL NO

08665578

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Abstract

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A polarographic sensor device to determine the partial pressure of a gas in a sample medium is disclosed. The device comprises a) a substantially hydroscopic electrolyte composition joining a pair of spaced apart electrodes, one of the pair of electrodes being a sensing electrode; b) a membrane permeable to gas but impermeable to the electrolyte, the membrane having a front section for separating the electrodes and the electrolyte from the sample medium; and c) a fastener comprising a sleeve having a body portion and a lip, the body portion retaining the fastener and a side section of the membrane, and the lip retaining a portion of the front section of the membrane and holding substantially the entire front section in a spaced apart relationship from the sensing electrode.

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Patent Owner(s)

Patent OwnerAddress
BECKMAN INSTRUMENTS INC485 POTRERO AVENUE SUNNYVALE CA 94086

International Classification(s)

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  • 1996 Application Filing Year
  • G01N Class
  • 2869 Applications Filed
  • 1348 Patents Issued To-Date
  • 46.99 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances199619971998199920002001200220032004200520062007200820092010201120120255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lin, Dean Y Chino Hills, CA 8 172
Nguyen, Khan V Westminster, CA 1 5
Shu, Frank R La Habra Heights, CA 11 76
Xie, Yougin E Diamond Bar, CA 1 5

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Patent Citation Ranking

  • 5 Citation Count
  • G01N Class
  • 2.26 % this patent is cited more than
  • 27 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges317193171287036151412751601 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8081 - 9091 - 100100 +050100150200250300350400450500550600650700750800

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