Link to Home page banner map

Chemistry Patent Search

Chemistry Patent Search is owned by Altimatia, LLC, which was founded in 2003 to provide prompt, thorough, and reliable patent searching services. Chemistry Patent Search specializes in chemical patent searching, exact structure searching, substructure searching, Markush searching, and reaction searching.

Cassandra (Sandy) Burcham (Service is our Business, Inc.)

Sandy Burcham has over twenty years experience as a patent and chemical information search professional, working in such areas as patent searching, chemistry searching, biomedical/biotech searching, and competitive intelligence searching. She has worked for chemical information thought-leaders including Orbit, Derwent, and Questel.

Sandy is an expert the Questel Merged Markush Service (MMS), and continues to provide MMS support for customers using Questel databases and the MMS system. Sandy's clients include law firms, chemical companies, pharmaceutical companies, and biotech companies. In addition to conducting chemistry patent searches and providing Questel customer support, Sandy also provides chemistry searching training.

Sandy received her Bachelor of Science in Chemistry from the College of William and Mary, and attended graduate school at the University of Pennsylvania.

Sandy is a member of:


David Gange (Altimatia, llc)

For over twenty years David has worked in the areas of chemical information management, chemistry searching, and patent searching. He is the author of more than thirty patents and publications, and in 2007 was awarded U.S. Patent 7,251,643 for a new method of chemical database searching. His clients include law firms, chemical companies, pharmaceutical companies, and biotech companies. David's searching specialties include pharmaceuticals, small molecules, and medical devices. Past projects include novelty searching, competitive intelligence, M & A due diligence, infringement analysis, and state-of-the-art surveys.

David received his Bachelor of Science with Honors in Chemistry from Tulane University. After graduating from Tulane, he went on to receive a Ph.D. in organic synthesis from The Ohio State University and completed postdoctoral studies at Columbia University.

David is a Registered Patent Agent (Reg. No. 55,198), and a member of:


Contact Chemistry Patent Search