When does Zoloft's patent expire?

Answer The patent for Zoloft, or sertraline HCI, expired on June 30, 2006. Zoloft is a leading antidepressant drug that was first released in the U.S. market in 1987. It is made by Pfizer Inc., one of t... Read More »

Top Q&A For: When does Zoloft's patent expire

Does a patent expire?

Yes. In the United States, patents expire 20 years after the patent holder submits the application. Patents on designs, however, expire 14 years after the patent is granted. While some pharmaceuti... Read More »

When does the lipitor patent expire?

The patent on Lipitor (atorvastatin calcium) expires in June 2011. Lipitor is a leading cholesterol-cutting drug. Its maker is Pfizer Inc., one of the world's largest pharmaceutical companies. T... Read More »

When will the imitrex patent expire?

Drug patents are extended for fourteen years from the original first sale date. Imitrex STATdose expired in December of 2006, while Imitrex tablets expired in 2009. Imitrex nasal spray will expire ... Read More »

When does the Zocor patent expire?

The patent for Zocor, or simvastatin, expired on June 23, 2006. Zocor is a cholesterol-lowering drug made by pharmaceutical company Merck & Co., Inc. Lipitor, a drug that competes with Zocor, lose... Read More »