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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Covington; Robert R.
Address:
Evansville, IN
No. of patents:
2
Patents:












Patent Number Title Of Patent Date Issued
4491587 Tetrazole derivatives January 1, 1985
6-(1H-Tetrazol-5-yl)thiazolo[3,2-a]pyrimidin-5-ones, 3-(1H-tetrazol-5-yl)-4H-pyrimido[2,1-b]benzothiazol-4-ones, and the corresponding imidazo- and triazolo- pyrimidines, thiones, and imines are useful as antiallergy and antiasthmatic compounds by virtue of their inhibitory action on
4223031 Azolopyrimidinones September 16, 1980
6-(1H-Tetrazol-5-yl)thiozolo[3,2-a]pyrimidin-5-ones, 3-(1H-tetrazol-5-yl)-4H-pyrimido[2,1-b]benzothiazol-4-ones, and the corresponding imidazo- and triazolo-pyrimidines, thiones, and imines are useful as antiallergy and antiasthmatic compounds by virtue of their inhibitory action on










 
 
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