patent purchased by
Thomas Edison to preclude challenges Patent trolls are neither using nor marketing the inventions covered by their patents, but instead plan to make money by threatening or filing lawsuits. Using the justice system to make money gives patent trolls a financial advantage because patent troll plaintiffs are typically immune from defense strategies large business employ against legitimate smaller patent plaintiffs (e.g., litigation costs are significantly higher for the defendant or infringer than for a purported damaged plaintiff who has a "no recovery, no fee" contingency-fee lawyer; until recently trolls had an almost-unrestricted ability to choose
plaintiff-friendly forums, frequently the Eastern District of Texas). Strategies used by companies to protect themselves from legitimate competition are ineffective against patent trolls. Defensive techniques include: monitoring patent activities of competitors to avoid infringing patents (since patent trolls are not competitors, productive companies usually have no way to find out about the troll or its patents until after significant investments have been made to produce and market a product); going on the offensive with
counterclaims that accuse the patent plaintiff of infringing patents owned by the defendant (the mutual threat often leads the parties to arrive at a mutually beneficial
cross-licensing arrangement); or a "scorched earth" defense designed to drive up litigation costs (which is equally ineffective because patent trolls plan for and have the finances to fully litigate a case; Patent "pooling" arrangements where many companies collaborate to bring their patented knowledge together to create new products are also inapplicable to patent trolls because they do not produce products. It is possible to perform offensive techniques to ward off patent trolls with the
open source release of concepts preemptively via
patentleft license to prevent patent trolls from establishing
intellectual property on building block technology. A
Google-led initiative,
LOT Network, was formed in 2014 to combat PAEs by cross-licensing patents that fall into the hands of enforcers. Another Google-affiliated organization,
Unified Patents, seeks to reduce the number and effectiveness of patent trolls by filing
inter partes reviews (IPR) on patents owned by trolls. Large companies who use patent litigation as a competitive tool risk losing their patent rights if a defendant claims
patent misuse. However, the misuse defense is difficult against a patent troll because
antitrust violations typically involved require significant market power on the part of the patent holder. Nevertheless, manufacturers do use various tactics to limit their exposure to patent trolls. Most have broader uses as well for defending their technologies against competitors. These include: •
Design arounds can be a defense against patent trolls. The amount of license fee that a patent troll can demand is limited by the alternative of the cost of designing around the troll's patent(s). •
Patent watch. Companies routinely monitor new patents and patent applications, most of which are published, to determine if any are relevant to their business activities. •
Clearance search. A standard practice is to perform a clearance search for patents or pending patent applications that cover important features of a potential product, before its initial development or commercial introduction. For example, a search by
Thomas Edison uncovered a prior patent by two
Canadian inventors,
Henry Woodward and
Mathew Evans, for carbon filament in a non-oxidizing environment, (), the type of light bulb Edison wanted to develop. Edison bought the patent for US$5,000 ($ in present-day terms) to eliminate the possibility of a later challenge by Woodward and Evans. •
Opposition proceeding. In Europe (under the European Patent Convention), any person may initiate
proceedings to oppose a European patent. There is a more limited process in the United States, known as a
reexamination. As an example,
Research In Motion, filed reexaminations against broad
NTP, Inc. patents related to
BlackBerry technology. •
Litigation. Whereas some companies acquiesce to a troll's demands, others go on the offensive by challenging the patents themselves, for example by finding
prior art that calls into question their
patentability. They may also broadly challenge whether the technology in question is infringing, or attempt to show patent misuse. If successful, such a defense not only wins the case at hand but destroys the patent troll's underlying ability to sue. Knowing this, the patent troll may back down or lessen its demands. •
Early settlement. An early settlement is often far less expensive than litigation costs and later settlement values. •
Patent infringement insurance. Insurance is available to help protect companies from inadvertently infringing a third party's patents. •
Defensive patent aggregation, the practice of purchasing patents or patent rights from patent holders so they don't end up in the hands of an individual or enterprise that can assert them. Increasingly aggregations are focused on purchasing patents and patent rights off the open market, or out of NPE assertion and litigation, which directly impact the businesses of the aggregation's members. The aggregator then provides members a broad license to everything it owns in exchange for an annual fixed-fee. Defensive aggregators purchased 15% of all brokered patent sales in 2014. •
Action for unjustified threats. In Australia, the UK and other countries, a legal action may be brought against anyone who makes unjustifiable threats to begin patent infringement proceedings. Concerning the Australian threats provisions, Lisa L. Mueller says that "if a patent troll is found to have engaged in a threat, the only way it could defend itself against an injunction or an award of monetary damages would be to commence patent infringement proceedings and have the court find that infringement occurred." ==See also==