Patent 7509178
Litigation summary
Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.
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No PTAB proceedings on file. This patent has not been challenged through Inter Partes Review, Post-Grant Review, or Covered Business Method review at the USPTO. The absence is itself a signal — well-asserted patents eventually attract IPRs.
Cases on file (0)
Specific litigation cases in our database that name US patent 7509178. The free-form analysis below may also discuss cases beyond this list.
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Litigation summary
Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.
Here is a list of known litigation involving US patent 7509178:
Plaintiff(s): Personal Audio LLC
- Defendant(s): Not specified in the provided snippet, but typical for patent infringement suits, these would be the accused infringers.
- Jurisdiction: Texas Eastern District Court
- Case Number: 1:11-cv-00655
- Filing Date: Not specified in the provided snippet.
- Outcome/Current Status: Litigation [cite: US7509178B2]
Plaintiff(s): Personal Audio LLC
- Defendant(s): Not specified in the provided snippet.
- Jurisdiction: Texas Eastern District Court
- Case Number: 1:13-cv-00513
- Filing Date: Not specified in the provided snippet.
- Outcome/Current Status: Litigation [cite: US7509178B2]
Plaintiff(s): Not specified (Petitioner)
- Defendant(s): Not specified (Patent Owner, Personal Audio LLC)
- Jurisdiction: Patent Trial and Appeal Board (PTAB)
- Case Number: IPR2015-00846
- Filing Date: Not specified in the provided snippet.
- Outcome/Current Status: Final Written Decision [cite: US7509178B2]
Plaintiff(s): Not specified (Petitioner)
- Defendant(s): Not specified (Patent Owner, Personal Audio LLC)
- Jurisdiction: Patent Trial and Appeal Board (PTAB)
- Case Number: IPR2015-00501
- Filing Date: Not specified in the provided snippet.
- Outcome/Current Status: Settlement [cite: US7509178B2]
Plaintiff(s): Not specified (Petitioner)
- Defendant(s): Not specified (Patent Owner, Personal Audio LLC)
- Jurisdiction: Patent Trial and Appeal Board (PTAB)
- Case Number: IPR2015-00500
- Filing Date: Not specified in the provided snippet.
- Outcome/Current Status: Settlement [cite: US7509178B2]
Plaintiff(s): Personal Audio LLC
- Defendant(s): Not specified in the provided snippet.
- Jurisdiction: Texas Eastern District Court
- Case Number: 9:10-cv-00035
- Filing Date: Not specified in the provided snippet.
- Outcome/Current Status: Litigation [cite: US7509178B2]
Plaintiff(s): Personal Audio LLC
- Defendant(s): Not specified in the provided snippet.
- Jurisdiction: Texas Eastern District Court
- Case Number: 9:09-cv-00111
- Filing Date: Not specified in the provided snippet.
- Outcome/Current Status: Litigation [cite: US7509178B2]
Plaintiff(s): Personal Audio LLC
- Defendant(s): Not specified in the provided snippet.
- Jurisdiction: Texas Eastern District Court
- Case Number: 1:15-cv-00350
- Filing Date: Not specified in the provided snippet.
- Outcome/Current Status: Litigation [cite: US7509178B2]
Plaintiff(s): Personal Audio LLC
- Defendant(s): Not specified in the provided snippet.
- Jurisdiction: Texas Eastern District Court
- Case Number: 1:14-cv-00008
- Filing Date: Not specified in the provided snippet.
- Outcome/Current Status: Litigation [cite: US7509178B2]
Plaintiff(s): Personal Audio LLC
- Defendant(s): Not specified in the provided snippet.
- Jurisdiction: California Northern District Court
- Case Number: 3:17-cv-05583
- Filing Date: Not specified in the provided snippet.
- Outcome/Current Status: Litigation [cite: US7509178B2]
Plaintiff(s): Personal Audio LLC
- Defendant(s): Not specified in the provided snippet.
- Jurisdiction: Texas Eastern District Court
- Case Number: 1:11-cv-00531
- Filing Date: Not specified in the provided snippet.
- Outcome/Current Status: Litigation [cite: US7509178B2]
Plaintiff(s): Personal Audio LLC
- Defendant(s): Not specified in the provided snippet.
- Jurisdiction: Texas Eastern District Court
- Case Number: 1:11-cv-00432
- Filing Date: Not specified in the provided snippet.
- Outcome/Current Status: Litigation [cite: US7509178B2]
Plaintiff(s): Personal Audio LLC
- Defendant(s): Not specified in the provided snippet.
- Jurisdiction: Delaware District Court
- Case Number: 1:17-cv-01751
- Filing Date: Not specified in the provided snippet.
- Outcome/Current Status: Litigation [cite: US7509178B2]
Plaintiff(s): Not specified in the provided snippet (likely Personal Audio LLC or an affiliate)
- Defendant(s): Not specified in the provided snippet.
- Jurisdiction: Court of Appeals for the Federal Circuit
- Case Number: 24-1020
- Filing Date: Not specified in the provided snippet.
- Outcome/Current Status: Litigation [cite: US7509178B2]
Plaintiff(s): Not specified in the provided snippet (likely Personal Audio LLC or an affiliate)
- Defendant(s): Not specified in the provided snippet.
- Jurisdiction: Court of Appeals for the Federal Circuit
- Case Number: 17-2111
- Filing Date: Not specified in the provided snippet.
- Outcome/Current Status: Litigation [cite: US7509178B2]
Plaintiff(s): Not specified in the provided snippet (likely Personal Audio LLC or an affiliate)
- Defendant(s): Not specified in the provided snippet.
- Jurisdiction: Court of Appeals for the Federal Circuit
- Case Number: 17-2110
- Filing Date: Not specified in the provided snippet.
- Outcome/Current Status: Litigation [cite: US7509178B2]
Plaintiff(s): Not specified in the provided snippet (likely Personal Audio LLC or an affiliate)
- Defendant(s): Not specified in the provided snippet.
- Jurisdiction: Court of Appeals for the Federal Circuit
- Case Number: 17-1162
- Filing Date: Not specified in the provided snippet.
- Outcome/Current Status: Litigation [cite: US7509178B2]
Plaintiff(s): Personal Audio LLC
- Defendant(s): Not specified in the provided snippet.
- Jurisdiction: California Central District Court
- Case Number: 2:13-cv-05571
- Filing Date: Not specified in the provided snippet.
- Outcome/Current Status: Litigation [cite: US7509178B2]
The provided information from Google Patents mentions "First worldwide family litigation filed" with a link to darts-ip.com, but does not provide the specific details of that case such as plaintiff, defendant, case number, or jurisdiction within the provided text. [cite: US7509178B2]
Note that specific filing dates and the identities of all defendants are not consistently available in the provided Google Patents snippet. To obtain more detailed information, including specific defendants and full case dockets, a direct search of PACER (Public Access to Court Electronic Records) or Unified Patents' database would be necessary, often requiring login and payment. The provided snippets from Google Patents serve as a valuable starting point by listing the existence of these cases.
Generated 5/29/2026, 8:48:10 PM