Litigation summary

Litigation Involving U.S. Patent 6,199,076

U.S. Patent 6,199,076, assigned to Personal Audio LLC, has been the subject of multiple patent infringement lawsuits against major technology companies. Personal Audio LLC, the plaintiff in these cases, has been characterized as a "patent troll" by some sources. The litigation has spanned various jurisdictions and has had a range of outcomes, from significant jury awards to subsequent reversals and patent claim invalidations.

Personal Audio LLC v. Apple Inc.

• Plaintiff(s): Personal Audio LLC
• Defendant(s): Apple Inc.
• Jurisdiction: U.S. District Court for the Eastern District of Texas, Lufkin Division
• Case Number: 9:09-cv-00111
• Filing Date: 2009
• Outcome/Current Status: In a jury trial that concluded on July 8, 2011, Apple was found to have infringed on two of Personal Audio's patents, including 6,199,076, with its iPod products. The jury awarded Personal Audio $8 million in damages. Following the verdict, Personal Audio's attempt to seek further damages for other Apple products like the iPhone and iPad was denied by the court, which ruled that the lump-sum award constituted a fully paid-up license for both past and future uses of the technology by Apple.

Personal Audio LLC v. Google LLC

• Plaintiff(s): Personal Audio LLC
• Defendant(s): Google LLC
• Jurisdiction: U.S. District Court for the District of Delaware
• Case Number: 1:17-cv-01751 (originally filed in Texas in 2015 and later transferred)
• Filing Date: 2015
• Outcome/Current Status: On June 21, 2023, a federal jury in Delaware found that Google's Play Music service infringed on two of Personal Audio's patents, including 6,199,076. The jury awarded Personal Audio $15.1 million in damages and found the infringement to be willful. However, on September 5, 2023, the presiding judge overturned the jury's verdict, ruling that there was insufficient evidence to support the finding of direct infringement by Google. The court entered a judgment of no infringement.

Google LLC v. Personal Audio LLC (Inter Partes Review)

• Petitioner: Google LLC
• Patent Owner: Personal Audio, LLC
• Jurisdiction: U.S. Patent and Trademark Office, Patent Trial and Appeal Board (PTAB), with appeal to the U.S. Court of Appeals for the Federal Circuit
• Case Number: 2017-1162 (Federal Circuit)
• Filing Date: IPR was instituted prior to the appellate decision.
• Outcome/Current Status: In a decision dated August 1, 2018, the U.S. Court of Appeals for the Federal Circuit affirmed a mixed decision by the PTAB. The PTAB had found claims 1 and 4 of the '076 patent to be unpatentable for obviousness, while upholding the patentability of claims 2, 3, 14, and 15. The Federal Circuit's decision affirmed this outcome.

Other Notable Litigation by Personal Audio LLC

While not directly involving patent 6,199,076, it is worth noting that Personal Audio LLC has been involved in other high-profile patent litigation that follows a similar pattern. For instance, they sued several podcasters, including Adam Carolla, over U.S. Patent 8,112,504, a related patent. This particular patent was later the subject of a successful challenge by the Electronic Frontier Foundation (EFF), which resulted in the invalidation of the asserted claims. This broader context of litigation provides insight into the patent enforcement strategies of Personal Audio LLC.