Enclosure 3
Copies of Abstracts of Patents Granted to Helmut F. Prahl, Ph.D.
(and others)
(From Chemical Abstracts, (all entries have been enlarged) and
the U.S. Patent & Trademark Office, Patent Full Text and Image Database
(abstract only))
Chemical Abstracts, 64: P 11373f.
Chemical Abstracts, 70: P 97901a.
Chemical Abstracts, 70: P 116003c.
Chemical Abstracts, 71: P 92369u.
Chemical Abstracts, 78: P 45374b.