SEOUL SEMICONDUCTOR CO., LTD. et al v. Planar Systems, Inc.
| Filed | 2026-07-30 |
|---|---|
| Court | S.D. Tex. |
| Docket | 4:26-cv-06154 |
| Nature of suit | 830 Patent |
| Practice area | Patent |
| Plaintiff | SEOUL SEMICONDUCTOR CO., LTD. et al |
| Defendant | Planar Systems, Inc. |
| Complaint | Download the complaint (PDF, free) |
What the complaint alleges
Seoul Semiconductor Co., Ltd. and Seoul Viosys Co. Ltd. sued Planar Systems, Inc. in the U.S. District Court for the Southern District of Texas for patent infringement. The plaintiffs allege that Planar imports, sells, and offers for sale light-emitting diode (LED) display products that infringe twelve of their patents. The complaint claims Planar had knowledge of the patents and continued its infringing conduct after receiving notice.
Claims asserted
- 35 U.S.C. § 271 et seq. - patent infringement (Count 1: U.S. Patent No. 12,288,838)
- 35 U.S.C. § 271 et seq. - patent infringement (Count 2: U.S. Patent No. 12,156,498)
- 35 U.S.C. § 271 et seq. - patent infringement (Count 3: U.S. Patent No. 11,961,876)
- 35 U.S.C. § 271 et seq. - patent infringement (Count 4: U.S. Patent No. 12,074,144)
- 35 U.S.C. § 271 et seq. - patent infringement (Count 5: U.S. Patent No. 12,527,133)
- 35 U.S.C. § 271 et seq. - patent infringement (Count 6: U.S. Patent No. 12,298,552)
- 35 U.S.C. § 271 et seq. - patent infringement (Count 7: U.S. Patent No. 10,069,048)
- 35 U.S.C. § 271 et seq. - patent infringement (Count 8: U.S. Patent No. 9,520,543)
- 35 U.S.C. § 271 et seq. - patent infringement (Count 9: U.S. Patent No. 7,667,225)
- 35 U.S.C. § 271 et seq. - patent infringement (Count 10: U.S. Patent No. 7,572,653)
- 35 U.S.C. § 271 et seq. - patent infringement (Count 11: U.S. Patent No. 9,859,469)
- 35 U.S.C. § 271 et seq. - patent infringement (Count 12: U.S. Patent No. 9,397,269)