Five9, Inc. v. Arlington Technologies LLC
| Filed | 2026-08-03 |
|---|---|
| Court | N.D. Cal. |
| Docket | 3:26-cv-08048 |
| Nature of suit | 830 Patent |
| Practice area | Patent |
| Plaintiff | Five9, Inc. |
| Defendant | Arlington Technologies LLC |
| Complaint | Download the complaint (PDF, free) |
What the complaint alleges
Five9, Inc. sued Arlington Technologies LLC in the U.S. District Court for the Northern District of California seeking a declaratory judgment of non-infringement of five patents (U.S. Patent Nos. 7,711,101; 9,715,492; 9,432,517; 8,379,819; 7,327,834). Five9 alleges that Arlington has threatened litigation and engaged in enforcement activities against other companies, creating an actual controversy over whether Five9's products infringe the patents. Five9 denies any infringement.
Claims asserted
- Declaratory Judgment of Non-Infringement of U.S. Patent No. 7,711,101 under 35 U.S.C. § 1 et seq. and the Declaratory Judgment Act, 28 U.S.C. §§ 2201–2202
- Declaratory Judgment of Non-Infringement of U.S. Patent No. 9,715,492 under 35 U.S.C. § 1 et seq. and the Declaratory Judgment Act, 28 U.S.C. §§ 2201–2202
- Declaratory Judgment of Non-Infringement of U.S. Patent No. 9,432,517 under 35 U.S.C. § 1 et seq. and the Declaratory Judgment Act, 28 U.S.C. §§ 2201–2202
- Declaratory Judgment of Non-Infringement of U.S. Patent No. 8,379,819 under 35 U.S.C. § 1 et seq. and the Declaratory Judgment Act, 28 U.S.C. §§ 2201–2202
- Declaratory Judgment of Non-Infringement of U.S. Patent No. 7,327,834 under 35 U.S.C. § 1 et seq. and the Declaratory Judgment Act, 28 U.S.C. §§ 2201–2202