Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving oxidoreductase
Patent
1989-06-12
1997-12-30
Housel, James C.
Chemistry: molecular biology and microbiology
Measuring or testing process involving enzymes or...
Involving oxidoreductase
422 56, 422 61, 435 28, 435184, 435810, 436 66, 436169, G01N 2100, G01N 3372, C12Q 128, C12N 999
Patent
active
057029130
ABSTRACT:
An improved chromogen-reagent test system for a slide, test kit or the like has particular utility in the testing of fecal specimens for occult blood. The chromogen-reagent system may include the use of colorless guaiac which, in the presence of a developing solution and a catalyst, is oxidized to yield a predetermined color such as blue. Hydrogen peroxide is used as the developing solution and hemoglobin in the fecal specimen functions as the catalyst. The chromogen-reagent test system includes an indicator area for determining if the guaiac and the developing solution are functioning properly, i.e., the test system of the present invention verifies that the guaiac has not lost its activity nor been improperly catalyzed and that the hydrogen peroxide has not lost its activity. The indicator area includes a catalyst which has a greater stability than blood, in respect to adverse environmental conditions, such that a determination can be made if the reagents are functioning properly.
REFERENCES:
patent: Re28575 (1975-10-01), Bauer
patent: 2223520 (1940-12-01), Ioannu
patent: 2290436 (1942-07-01), Kamlet
patent: 2387244 (1945-10-01), Compton et al.
patent: 2394140 (1946-02-01), Biscow
patent: 2418392 (1947-04-01), Bender
patent: 2567445 (1951-09-01), Parker
patent: 2754289 (1956-07-01), Meyer
patent: 2773906 (1956-12-01), Emerson
patent: 2799660 (1957-07-01), Nicholls et al.
patent: 2800457 (1957-07-01), Green et al.
patent: 2800458 (1957-07-01), Green
patent: 2823984 (1958-02-01), Mavrodineanu
patent: 2838377 (1958-06-01), Fonner
patent: 2848308 (1958-08-01), Free
patent: 2886445 (1959-05-01), Rosenthal et al.
patent: 2893844 (1959-07-01), Cook
patent: 2905594 (1959-09-01), Morris
patent: 2930695 (1960-03-01), Rosner et al.
patent: 2953454 (1960-09-01), Berman
patent: 2986453 (1961-05-01), Collins
patent: 3012976 (1961-12-01), Adams, Jr. et al.
patent: 3017879 (1962-01-01), Sapit et al.
patent: 3034922 (1962-05-01), Boe et al.
patent: 3042496 (1962-07-01), Fancher et al.
patent: 3043782 (1962-07-01), Jensen
patent: 3057723 (1962-10-01), Jeffreys et al.
patent: 3066081 (1962-11-01), Rorem et al.
patent: 3092463 (1963-06-01), Adams, Jr. et al.
patent: 3092464 (1963-06-01), Adams, Jr. et al.
patent: 3116223 (1963-12-01), Rosner et al.
patent: 3183173 (1965-05-01), Oakes
patent: 3232710 (1966-02-01), Rieckmann et al.
patent: 3252762 (1966-05-01), Adams, Jr. et al.
patent: 3290117 (1966-12-01), Adams, Jr. et al.
patent: 3293683 (1966-12-01), Wyant
patent: 3350278 (1967-10-01), Gretton et al.
patent: 3406015 (1968-10-01), Foster
patent: 3406106 (1968-10-01), Garwood et al.
patent: 3411887 (1968-11-01), Chiu-Choon Ku
patent: 3418079 (1968-12-01), Rey et al.
patent: 3438737 (1969-04-01), Atkinson et al.
patent: 3443903 (1969-05-01), Haack et al.
patent: 3447536 (1969-06-01), Snyder
patent: 3453180 (1969-07-01), Fraser, Jr. et al.
patent: 3466145 (1969-09-01), Duyne
patent: 3472738 (1969-10-01), Foster
patent: 3507269 (1970-04-01), Berry
patent: 3509872 (1970-05-01), Truhan
patent: 3511608 (1970-05-01), Anderson
patent: 3526480 (1970-09-01), Findl et al.
patent: 3552925 (1971-01-01), Fetter
patent: 3558435 (1971-01-01), Rey et al.
patent: 3598704 (1971-08-01), Dablqvist
patent: 3625654 (1971-12-01), Duyne
patent: 3627697 (1971-12-01), Rey et al.
patent: 3627698 (1971-12-01), Rey et al.
patent: 3630847 (1971-12-01), Rey et al.
patent: 3630957 (1971-12-01), Rey et al.
patent: 3654179 (1972-04-01), Bauer
patent: 3654180 (1972-04-01), Bauer
patent: 3668076 (1972-06-01), Rey et al.
patent: 3672351 (1972-06-01), Ubersax et al.
patent: 3699005 (1972-10-01), Foster
patent: 3712853 (1973-01-01), Rittersdorf et al.
patent: 3713772 (1973-01-01), Tavel
patent: 3811840 (1974-05-01), Bauer et al.
patent: 3814668 (1974-06-01), Blake et al.
patent: 3847553 (1974-11-01), Verbeck
patent: 3853468 (1974-12-01), Haymond
patent: 3853471 (1974-12-01), Rittersdorf et al.
patent: 3853472 (1974-12-01), Rittersdorf et al.
patent: 3854885 (1974-12-01), Fromm et al.
patent: 3912457 (1975-10-01), Ogawa et al.
patent: 3917452 (1975-11-01), Rittersdorf et al.
patent: 3964871 (1976-06-01), Hochstrasser
patent: 3975161 (1976-08-01), Svoboda et al.
patent: 3986833 (1976-10-01), Mast et al.
patent: 3996006 (1976-12-01), Pagano
patent: 4005984 (1977-02-01), Alsop
patent: 4017261 (1977-04-01), Svoboda et al.
patent: 4035150 (1977-07-01), Jaffe
patent: 4046514 (1977-09-01), Johnston et al.
patent: 4061468 (1977-12-01), Lange et al.
patent: 4063894 (1977-12-01), Ogawa et al.
patent: 4071318 (1978-01-01), Lam
patent: 4092120 (1978-05-01), Suovaniemi et al.
patent: 4148611 (1979-04-01), Nand et al.
patent: 4175923 (1979-11-01), Friend
patent: 4219336 (1980-08-01), Guthlein et al.
patent: 4220713 (1980-09-01), Rittersdorf et al.
patent: 4251222 (1981-02-01), White
patent: 4251223 (1981-02-01), White
patent: 4260393 (1981-04-01), Gibson
patent: 4269938 (1981-05-01), Frank
patent: 4277250 (1981-07-01), Melnick et al.
patent: 4278439 (1981-07-01), White
patent: 4292272 (1981-09-01), Kitajima et al.
patent: 4303409 (1981-12-01), Ogawa et al.
patent: 4310626 (1982-01-01), Burkhardt et al.
patent: 4329317 (1982-05-01), Detweiler et al.
patent: 4333734 (1982-06-01), Fleisher
patent: 4365970 (1982-12-01), Lawrence et al.
patent: 4385114 (1983-05-01), Guthlein et al.
patent: 4447542 (1984-05-01), Gantzer
patent: 4486536 (1984-12-01), Baker et al.
patent: 4493892 (1985-01-01), Fleisher
patent: 4511533 (1985-04-01), Guadagno et al.
patent: 4541987 (1985-09-01), Guadagno
patent: 4556640 (1985-12-01), Gantzer
patent: 4578358 (1986-03-01), Oksman et al.
patent: 4725553 (1988-02-01), Guadagno
patent: 4742002 (1988-05-01), Guadagno
Wood et al--The Dispensatory of the U.S. of America--23rd edition (1943) pp. 507-508.
Heinrich et al., Klin Wochenschr 58(23): 1283-1298 (1980).
Helena Laboratories Corporation
Housel James C.
Welch Scott F.
LandOfFree
Chromgen-reagent test system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Chromgen-reagent test system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chromgen-reagent test system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-201397