Use of the Tetracycline controllable expression systems (the "Tet Technology") is covered by a series of patents including U.S. patents # 5,464,758 and #5,814,618, which are proprietary to TET Systems Holding GmbH & Co. KG. Academic research institutions are granted an automatic license with the purchase of this product to use the Tet Technology only for internal, academic research purposes, which license specifically excludes the right to sell, or otherwise transfer, the Tet Technology or its component parts to third parties. Notwithstanding the above, academic and not-for profit research institutions who’s research using the Tet Technology is sponsored by for profit organizations, which shall receive ownership to all data and results stemming from the sponsored research, shall need a commercial license agreement from IP Merchandisers in order to use the Tet Technology. In accepting this license, all users acknowledge that the Tet Technology is experimental in nature. TET Systems Holding GmbH & Co. KG makes no warranties, express or implied or of any kind, and hereby disclaims any warranties, representations, or guarantees of any kind as to the Tet Technology, patents, or products. All others are invited to request a license from TET Systems Holding GmbH & Co. KG prior to purchasing these reagents or using them for any purpose. Open Biosystems is required by its licensing agreement to submit a report of all purchasers of the Tet-controllable expression system to IP Merchandisers, Inc. For license information, please contact:

Hans Peter Kneubuehl
TET Systems Holding GmbH & Co. KG
Im Neuenheimer Feld 582
69120 Heidelberg

Germany

Tel +49 6221 588 04 00
Fax +49 6221 588 04 04

email:kneubuehl@tet-systems.com

or use our electronic licensing request form via http://www.tetsystems.com/main_inquiry.htm