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특허 상세정보

Full history time-temperature indicator system

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G01K-003/04    G01K-003/00   
미국특허분류(USC) 374/106; 374/162; 374/159; 116/216
출원번호 US-0110498 (2000-10-09)
등록번호 US-7290925 (2007-11-06)
우선권정보 DK-1999 01450(1999-10-11)
국제출원번호 PCT/IB00/001443 (2000-10-09)
§371/§102 date 20021008 (20021008)
국제공개번호 WO01/027608 (2001-04-19)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Roberts, Mlotkowski & Hobbes P.C.
인용정보 피인용 횟수 : 8  인용 특허 : 32

A full-history time-temperature indicator system which is capable of exhibiting a time-temperature dependent and visually detectable chemical reaction, useful for monitoring the time and temperature exposure of food products. The system comprises an immobilized reactant, such as Fe3+, and a mobile reactant, such as Fe(CN)64-, initially contained in separate compartments, and separated by a sealing. The system is activated by removing a sealing between the compartments whereby the mobile reactant in a time-temperature dependent manner is brought into con...


The invention claimed is: 1. A full-history time-temperature indicator system which exhibits a time-temperature dependent and visually detectable, substantially irreversible chemical reaction, which system responds independently of a temperature threshold and provides a cumulative response to the time and storage conditions to which the system has been exposed, the system comprising at least one immobilized and at least one mobile reactant, at least one of said immobilized and mobile reactants comprising a metal compound, said immobilized reactant being...

이 특허에 인용된 특허 (32)

  1. Shafer Jules A. (1038 Baldwin Ann Arbor MI 48104). Accumulated thermal exposure responder and method of use. USP1985084533640.
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  8. Couch Thomas W. (Asheville NC) Harvey James A. (Enka NC) Tummers Gerardus L. J. (Asheville NC). Device for use as an elapsed time indicator or time temperature indicator. USP1979014137049.
  9. Seybold Paul G. (Dayton OH). Diffusion controlled security tags. USP1987024643122.
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  11. Schmoegner John C. (Kearns UT). Heat history indicator. USP1988064753188.
  12. Hashimoto Harumi (Ashiya JPX) Hirano Isamu (Ikeda JPX). Indicator for detection of thermal history. USP1987064675161.
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  17. Prusik Thaddeus (Roosevelt NJ) Arnold Raymond M. (Harrisonville NJ). Multifunctional time-temperature indicator. USP1991105057434.
  18. Joyce ; III Samuel F. (Ballwin MO) Morgan Albert W. (Collinsville IL) Touchette Norman W. (St. Louis MO) Vanderlinde William (St. Louis MO). Reaction products of metal oxides and salts with phosphorus compounds. USP1982024313761.
  19. Manske Wendell J. (Birchwood Village MN). Reservoir pad for time indicator. USP1976063962920.
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  26. Jalinski Thomas J. (Waunakee WI). Time temperature indicator with distinct end point. USP1993015182212.
  27. Larsson Raymond P. (Denville NJ). Time temperature integrating indicator. USP1977084042336.
  28. Patel Gordhanbhai N. (Morris Plains NJ) Preziosi Anthony F. (Ledgewood NJ) Baughman Ray H. (Morris Plains NJ). Time-temperature history indicators. USP1976123999946.
  29. Prusik Thaddeus ; Arnold Raymond M. ; Fields Stephen C.. Time-temperature indicator device and method of manufacture. USP1998015709472.
  30. Arens Robert P. (St. Paul MN) Birkholz Russell D. (Maplewood MN) Johnson Dee Lynn (Woodbury MN) Labuza Theodore P. (Arden Hills MN) Larson Curtis L. (Hudson WI) Yarusso David J. (Shoreview MN). Time-temperature integrating indicator device. USP1997095667303.
  31. Narayan K. Ananth (Framingham MA). Time-temperature method for establishing lethality of high temperature food processing. USP1997065637475.
  32. Robert Holt ; David J. Haas. Visually changing paper time indicator employing controllable barrier. USP2002096452873.