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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.

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:


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