I'd also recommend they reach out to Selenium developers and having a conversation with them to see if what they've done is really patentable. [Disclosure: I created Selenium]
:-) Although I kickstarted the project, I can't take a lot of credit for what it has become. It's a huge project now, with many people involved. Now, I'm just the crazy old uncle who can tell a good story about "the olden days". In the spirit of giving credit where credit is due, Paul Hammant is the one who came up with the HTTP proxy JS injection technique. Dan Fabulich, Nelson Sproul, and Patrick Lightbody rewrote it and refined it. (Some sources: http://paulhammant.com/blog/selenium.html/http://docs.seleniumhq.org/about/history.jsp)