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Nineteen studies, including one Thai study, looked at the effect of patents on FDI.
Patents on blockbuster drugs are expiring.
Western Union grew from Samuel Morse's patents on the telegraph, International Harvester from Cyrus McCormick's patents on the reaper, General Electric from Edison's patents on the light bulb, and A.T. & T. from Bell's patents on the telephone.
"I also have some patents on the Frisbee".
In addition, Holman has two patents on maple bats.
Other inventors are seeking patents on similar concepts.
Endo said that Purdue's many patents on OxyContin were invalid.
Lego's fundamental patents on the toy expired in 1978.
There are patents on human genes and human cells.
A15 Dodging Patents on Genes Bristol-Myers Squibb has teamed up with a little known company, Athersys Inc., that claims it can circumvent patents on genes.
Google was awarded design patents on Tuesday for its Project Glass browser glasses.
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