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Looking to offload some patents and make some extra cash? Google may be an interested buyer.

The Web giant on Monday launched a Patent Purchase Promotion, an "experiment to remove friction from the patent market and improve the landscape." On May 8, Google plans to open a portal where you'll be able to tell the company about the patents you're willing to sell, and how much you're looking to make.

The portal closes on May 22, at which time Google will review all the submissions and let you know by June 26 whether it's interested in buying your patents. If Google does want to buy your patents, you should get paid by late August, the company said.

In a blog post, Google's deputy general counsel for patents, Allen Lo, said the new experiment is aimed at not only simplifying the patent marketplace, but also combating trolls.

"Patent owners sell patents for numerous reasons (such as the need to raise money or changes in a company's business direction)," Lo wrote. "Unfortunately, the usual patent marketplace can sometimes be challenging, especially for smaller participants who sometimes end up working with patent trolls. Then bad things happen, like lawsuits, lots of wasted effort, and generally bad karma. Rarely does this provide any meaningful benefit to the original patent owner."

Google said that having a concentrated submission window will allow the company to quickly evaluate patent assets and get back to sellers quickly.

"Hopefully this will translate into better experiences for sellers, and remove the complications of working with entities such as patent trolls," Lo wrote.

Head over to Google's patent website for all the details of the new promotion. Google encouraged interested parties to read over and understand the fine print and speak with an attorney before participating.

Google has been trying to shore up its patent reserves for years. In 2011, it accused Apple, Microsoft, and other tech giants of trying to "strangle" Android with coordinated patent purchases and pledged to "intensely" defend its mobile OS through patent purchases of its own and opposition to what it considers anti-competitive patent bids.

That resulted in its purchase of Motorola Mobility only two weeks later. Though Google sold Motorola Mobility to Lenovo in 2014, it held on to the majority of the Motorola patent portfolio.

Last year, Google teamed up with Canon, Dropbox, and more for the License on Transfer (LOT) Network, which Google called "a sort of arms control for the patent world."

"By working together, we can cut down on patent litigation, allowing us to focus instead on building great products," Google said at the time.