Oct 30 - By Associated Press
Impax Laboratories Inc. confirmed Friday it is challenging the patents on Abbott Laboratories' cholesterol drug TriCor, and that Abbott is suing Impax for patent infringement.
Oct 21 - By Associated Press
Chemical maker DuPont Co. said Wednesday it has reached a settlement agreement regarding crop protection blend patents.
Oct 15 - By Associated Press
The U.S. Patent Office has awarded its 600,000th design patent — and it went to a Utah company.
Sep 3 - By Associated Press
The U.S. Appeals Court for the Federal Circuit says Microsoft Corp. can keep selling its Word desktop software as it appeals an unfavorable patent ruling.
Aug 28 - By Associated Press
The U.S. International Trade Commission issued a preliminary ruling saying that patents held by Tessera Technologies Inc. are valid but were not infringed, Tessera said Friday.
Aug 18 - By Associated Press
Microsoft Corp. is asking the U.S. Court of Appeals for the Federal Circuit to allow it to keep selling Word software as it fights an unfavorable patent ruling.
Aug 17 - By Associated Press
Generic drug developer Par Pharmaceutical Companies Inc. said Monday a federal court in Delaware ruled in the company's favor in a patent dispute over the pain drug Ultram ER.
Aug 14 - By Linda A. Johnson, AP Business Writer
The patent for Merck & Co.'s blockbuster allergy and asthma drug is valid, a federal judge ruled Wednesday, handing the drugmaker a crucial victory in its 2 1/2-year legal battle to block a rival from selling a cheaper generic version.
Aug 12 - By Associated Press
A federal judge in Texas has ordered Microsoft Corp. to stop selling some versions of its Word software in the U.S. within two months.
Jul 8 - By Matthew Barakat, Associated Press Writer
A federal judge has turned away a first-of-its-kind lawsuit filed by an attorney seeking to exploit a quirk in federal patent law that had been dormant for more than a century.

Jun 8 - By Matthew Barakat, Associated Press Writer
Look carefully at the lid to your coffee cup or the handle of your disposable razor. A recent ruling on an obscure, century-old statute has opened the door for people familiar with the finer points of patent law to sue companies that stamp their products with expired patent numbers.
May 13 - By Associated Press
A federal judge has dismissed an intellectual property lawsuit filed by the University of Missouri system against a chemical engineering professor who filed patents on his inventions.
May 13 - By Arthur Caplan, Ph.D., msnbc.com - Only on msnbc.com
Lawyers who work on patents in the pharmaceutical and biotechnology industries are sweating bullets today. It is not a bad thing when patent lawyers are feeling queasy.
Mar 30 - By Associated Press
Microsoft Corp., the world's largest software maker, on Monday said it settled a patent dispute over car navigation technology with TomTom NV for an undisclosed amount.
Mar 17 - By Associated Press
Discovery Communications Inc. says the Kindle electronic book readers from Amazon.com Inc. violate a patent that Discovery registered in 2007. Discovery sued Amazon in Delaware on Tuesday.
Mar 9 - By Associated Press
The Supreme Court has refused to get in the middle of a patent fight over a way to cure tobacco that may make it less carcinogenic.
Feb 7 - By Alan Scher Zagier, Associated Press Writer
Mere months ago, the University of Missouri routinely touted chemical engineering professor Galen Suppes for his innovative research into renewable energy.
Jan 6 - By Linda A. Johnson, AP Business Writer
The U.S. Patent & Trademark Office on Tuesday issued a notice allowing drugmaker Pfizer Inc. to correct a technical defect in one of the patents involving Pfizer's cholesterol medicine Lipitor, the world's top-selling drug.
Nov 17 - By Ben Dobbin, Associated Press Writer
Eastman Kodak Co. said it is suing South Korea's Samsung Electronics Co. and LG Electronics Inc. for infringing various digital-camera patents it obtained between 1993 and 2001.
Oct 6 - By Associated Press
The Supreme Court refused Monday to disturb a $74 million judgment against Dish Network Corp. for violating a patent held by TiVo Inc. involving digital video recorders.
Aug 8 - By Associated Press
Telecommunications chip maker Broadcom Corp. said Friday that it had won an initial ruling against rival SiRF Technology Holdings for violating six patents covering technology designed for global positioning systems.
Jul 14 - By Associated Press
A federal appellate court in Philadelphia on Monday overturned a jury's finding that Thomson Reuters Corp. infringed a patent for trading municipal bonds in Internet auctions.
Jun 9 - By Pete Yost, Associated Press Writer
The Supreme Court on Monday limited the ability of companies to collect multiple royalties on their patents, the latest step by the justices to scale back the power of patent-holders.

May 14 - By Associated Press
Nintendo of America Inc. was ordered to pay a small East Texas gaming company $21 million Wednesday for infringing on a patent while designing controllers for its popular Wii and GameCube systems.
Apr 16 - By Christopher S. Rugaber, AP Economics Writer
A small Pennsylvania company's patent lawsuits could hamstring the government's $1.5 billion effort to make the transition to digital television easier on consumers' wallets.