China Leads All Nations in Publication of Chemical Patents According to CAS, the World's Most Authoritative Publisher of Chemical Information

COLUMBUS, Ohio, November 23 - Chemical Abstracts Service (CAS), the global expert on chemical
information, reports that China's patent office is now the world's leading
producer of patent invention applications in chemistry. China trailed Japan's
patent office, the World Intellectual Property Organization (WIPO), and the
United States' patent office (USPTO) for more than a decade, but passed the
USPTO in 2005, WIPO in 2006, and exceeded Japan for the first time on a
monthly basis in 2008. In 2009, China will record an entire year as the
number one producer of chemical patents, and CAS projects that trend to
continue.

"Chemistry is widely recognized as 'the central science,'" according to
Dr. Matthew Toussant, senior vice president of editorial operations at CAS.
"Chemical patents are a critical component to many industrial processes and
scientific realms, including medicine and natural products," said Toussant.
In fact, on average, 35 percent of new patent invention applications involve
chemical substances."

"CAS has been recording the phenomenal growth of patent documents in the
last decade, with the number of chemistry-related patent publications by the
USPTO and WIPO growing by more than 500 percent," said Christine McCue, vice
president of marketing at CAS. "Meanwhile, Chinese invention applications
increased by nearly 1,400 percent, with much of that growth taking place in
the pharmaceutical sector. More than half of the China patent applications
during this period were from inventors within China, which surely indicates
that Chinese scientists now also recognize the importance of monetizing
research discoveries."

Hundreds of CAS scientists, aided by state-of-the-art technology,
identify and record the chemistry obscured in patents that standard search
engines cannot locate. Proprietary technology systems developed by CAS enable
scientists working around the world to analyze patents from 60 global patent
authorities. Patent documents meeting CAS selection criteria from nine major
patent offices are available in CAS databases within two days of the patents'
issuance, and are fully indexed in less than 27 days. CAS scientists add
value to the data they collect, entering chemical names, a unique CAS
Registry Number(R), literature references, property data, commercial
availability, preparation details, spectra, and regulatory information from
international sources into CAS databases.

About CAS

CAS, a division of the American Chemical Society, is the world's most
authoritative and comprehensive source for chemical information. CAS
databases, including CAS REGISTRY(SM), the "gold standard" for substance
information, are curated and quality-controlled by a global team of
scientists. Combining these databases with advanced search and analysis
technologies, CAS delivers the most complete, cross-linked, and effective
digital information environment for scientific research and discovery through
such products as SciFinder(R), STN(R), STN Express(R), and STN(R)
AnaVist(TM), as well as services, such as Science IP(R). Learn more at
www.cas.org.

Crystal Poole Bradley, CAS, +1-614-447-3611, cas-pr at cas.org