Is someone stealing another’s invention? Statements about invention infringement may be incorrect. Expect errors. Don’t necessarily take any statements about infringement as fact.
• Paid and free patent infringement tools are available. While these intellectual property tools may not be designed specifically for determining infringement, they can help establish if someone invented something prior to a certain date. The world's largest known patent application family with Innovation Institute, LLC is one such tool. This currently free patent infringement tool enables key word search by proximity, along with use of the Matrix.
Never Say Someone Is Infringing: Innovation Institute suggests to be safer that one state another's property is "perspectively infringing" at best.
Study free links about electronic patent rights www.ElectronicPatentRights.com