(19)
(11) EP 1 290 429 A2

(12)

(88) Date of publication A3:
18.04.2002

(43) Date of publication:
12.03.2003 Bulletin 2003/11

(21) Application number: 01942145.2

(22) Date of filing: 08.06.2001
(51) International Patent Classification (IPC)7: G01N 21/80, G01N 33/38
(86) International application number:
PCT/US0118/694
(87) International publication number:
WO 0109/4921 (13.12.2001 Gazette 2001/50)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 09.06.2000 US 210547 P

(71) Applicant: The Johns Hopkins University
Laurel, MD 20723-6099 (US)

(72) Inventors:
  • Phillips, Terry E.
    Ellicott City, MD 21043 (US)
  • Srinivasan, Rengaswamy
    Ellicott City, MD 21042 (US)
  • Bargeron, C. Brent
    Columbia, MD 21045 (US)
  • Saffarian, Hassan
    Silver Spring, MD 20904 (US)
  • Schemm, Elizabeth R.
    Clarksville, MD 21029 (US)

(74) Representative: Knapp, Thomas 
Dreiss, Fuhlendorf,Steimle & Becker,Patentanwälte,Postfach 10 37 62
70032 Stuttgart
70032 Stuttgart (DE)

   


(54) A pH SENSOR SYSTEM AND METHOD FOR USING SAME