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ALZA Corporation was a pharmaceutical and medical systems company founded in 1968 by Dr Alejandro Zaffaroni; the company's name is a portmanteau of his name. ALZA pioneered the field of drug delivery systems, bringing over 20 prescription pharmaceutical products to market, and employing about 10,000 people during 20 years. ALZA was acquired by Johnson & Johnson in May 2001, in a stock-for-stock transaction worth US$10.5 billion.
The company owns the patents on the following delivery platforms:
ALZA built its first corporate headquarters in 1971, at 950 Page Mill Road, now occupied by law firm Wilson Sonsini Goodrich & Rosati. In 1999, ALZA moved its headquarters to Shoreline Business Park, where it remained until July 2007, when Johnson & Johnson laid off some of its 600 employees there and vacated the space.  The remaining employees were relocated to two buildings elsewhere in the Shoreline Business Park. ALZA is now in operation in Vacaville, California.