Showing posts with label evergreening. Show all posts
Showing posts with label evergreening. Show all posts

26 October 2013

Using Patents To Needlessly Drive Up Healthcare Costs: The Economic Impact Of Evergreening Drugs

One technique in the world of pharma that has started appearing here on Techdirt is "evergreening" -- making small changes to a drug, often about to come off patent, in order to gain a new patent that extends its manufacturer's control over it. The advantages for pharma companies are evident, but what about the public? What economic impact does evergreening have? That's what a fascinating new paper in the open access journal PLoS Medicine seeks to establish: 

On Techdirt.

20 July 2013

OxyContin And The Art Of 'Evergreening'

A few weeks back, we wrote about the Indian Supreme Court's rejection of Novartis's attempt to use "evergreening" to prolong its patent on Gleevec, sold as Glivec in India. That term refers to the trick of making small changes to a drug, usually one about to come off patent, in order to gain a new monopoly that extends its manufacturer's control over a medicine. But how does that work in practice? 

On Techdirt.

How Big Agribusiness Is Heading Off The Threat From Seed Generics -- And Failing To Keep The Patent Bargain

Recently we wrote about how pharmaceutical companies use "evergreening" to extend their control over drugs as the patents expire. But this is also an issue for the world of agribusiness: a number of key patents, particularly for traits of genetically-engineered (GE) organisms, will be entering the public domain soon, and leading companies like Bayer, BASF, Dow, DuPont, Monsanto and Syngenta are naturally coming up with their own "evergreening" methods. 

On Techdirt.