Chiron is arguably the foremost specialist biotechnology R&D company i
n the world. This profile details the Company's uniquely low ratio of
patents per compound derived from the exceptionally large and active d
evelopment pipeline, the Company's strong associations with large conv
entional companies such as Ciba-Geigy and their aggressive company acq
uisition policy which has resulted in rapid sales growth but has adver
sely affected profitability. The Company's patenting policy and profil
e is discussed, revealing that 75% of its patenting is classed as phar
maceutical, dominated by virus-orientated projects and with virtually
all of its inventors based in the US. This article provides in depth a
nalysis of Chiron's patenting activity and R&D between 1990 and 1995.