An Open Letter to Helmut F. Prahl, Ph.D.

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.