Defendant

Samsung Electronics Co., Ltd.

123 cases as defendant.

Cases
123
Active
47
76 closed
Filed
2008–2026
Top venue
E.D. Texas
24 cases
Also appears as a plaintiff in 83 cases → View as plaintiff

Company profile

Samsung Electronics Co., Ltd. is a South Korean multinational electronics corporation headquartered in Suwon, South Korea. Founded in 1969, it is the flagship subsidiary of the Samsung Group. Samsung Electronics is a publicly traded company under the ticker KRX: 005930. The company is a major global enterprise, with an estimated 266,673 employees. For the fiscal year 2024, the company reported revenues of approximately $220.7 billion.

As one of the world's largest technology companies, Samsung Electronics operates two main divisions: Device eXperience (DX) and Device Solutions (DS). The DX division produces a wide array of consumer electronics, including its well-known Galaxy smartphones, tablets, and wearable devices, as well as TVs, projectors, sound devices, and digital home appliances like refrigerators and washing machines. The DS division manufactures electronic components, and is a global leader in semiconductors, producing memory (DRAM and NAND flash), system LSI, and providing foundry services for other companies.

Samsung’s patent litigation profile is primarily that of a large operating company defending itself against infringement allegations. The provided data shows Samsung as a defendant in 11 of 13 tracked cases, a typical posture for a company with a vast product portfolio. Many of these suits are filed in plaintiff-friendly jurisdictions, particularly the U.S. District Court for the Eastern District of Texas. In two instances, Samsung has acted as a plaintiff at the Patent Trial and Appeal Board (PTAB), a common strategy for defendants to challenge the validity of asserted patents.

The case list shows Samsung is frequently targeted by non-practicing entities (NPEs). Several entities appear as repeat plaintiffs against the company, including VB Assets, LLC, Gaea, LLC, and Lepton Computing LLC, all of which have filed suits in the Eastern District of Texas. The two plaintiff-side cases initiated by Samsung are PTAB petitions challenging the validity of patents held by VB Assets, LLC and Topwire LLC, corresponding to defensive actions against lawsuits brought by these entities.

Filing activity

2008: 1 case'08'102011: 3 cases2012: 1 case'122013: 1 case'142015: 1 case'162017: 6 cases2018: 4 cases'182019: 6 cases2020: 6 cases'202021: 19 cases2022: 7 cases'222023: 3 cases2024: 13 cases'242025: 20 cases202026: 5 cases'26
Cases filed per year naming Samsung Electronics Co., Ltd. as defendant.

Omni MedSci, Inc. v. Samsung Electronics Co., Ltd. et al.

pending
Docket:
2:26-cv-00356
Filed:
2026-05-01

Omni MedSci asserts eight patents, including US 12,588,820, against Samsung. The '820 is asserted at least in claims 9 and 10 against Samsung's Galaxy XR headset based on direct time-of-flight sensing. Relief sought includes declaratory judgment of infringement, damages, permanent injunction, and attorney's fees.

Lepton Computing LLC v. Samsung Electronics Co., Ltd. et al.

pending
Filed:
2026-04-26
Patents:11693450

Lepton Computing LLC alleges that Samsung's Galaxy Z Fold and Z Flip series smartphones infringe on nine patents related to foldable technology, including US 11,693,450. The plaintiff is seeking both monetary damages and a permanent injunction to halt sales of the accused devices.

Mobility IP Holdings, Inc. v. Samsung Electronics Co., Ltd. et al.

pending
Docket:
2:26-cv-00157
Filed:
2026-02-27

Mobility IP Holdings, Inc. sued Samsung Electronics Co., Ltd. and Samsung Electronics America, Inc. in the Eastern District of Texas, Marshall Division, asserting seven patents including US 8,151,345. The accused products include Samsung Galaxy S, A, Note, Xcover, Z Fold, Z Flip, Watch, and Tab series running Samsung Pay/Samsung Wallet. Service was completed in March 2026, answers were filed June 23, 2026, and a scheduling order was entered June 24, 2026; no merits ruling has been reported.

SureCell Transactions LLC v. Samsung Electronics America, Inc. et al.

pending
Docket:
2:26-cv-00106
Filed:
2026-02-12

SureCell Transactions LLC filed a patent infringement action against Samsung Electronics America, Inc. and Samsung Electronics Co., Ltd. in the Eastern District of Texas, Marshall Division. The complaint asserts six patents, including US 11,989,612, and accuses Galaxy smartphones, wearables, tablets, Samsung Pay/Wallet, and related payment apps. The case is pending.

Netlist, Inc. v. Samsung Electronics Co., Ltd. et al.

pending
Docket:
337-TA-1472
Filed:
2025-09-30
Patents:10217523B1

Netlist, Inc. filed an ITC complaint alleging infringement of its patent(s), including US10217523B1, by Samsung entities, Google LLC, and Super Micro Computer, Inc. The investigation was instituted and is pending before an Administrative Law Judge.

Network-1 Technologies, Inc. v. Samsung Electronics Co., Ltd. et al.

Active
Docket:
2:25-cv-00667
Filed:
2025-06-27
Patents:12166869

Network-1 Technologies, Inc. filed this patent infringement suit against Samsung Electronics Co., Ltd. and Samsung Electronics America, Inc. concerning US patent 12166869. The court denied Samsung's motion to focus asserted patent claims, and a Markman hearing is set for December 14, 2026, with jury selection for June 7, 2027.

Massively Broadband LLC v. Samsung Electronics Co., Ltd. et al.

Ongoing
Docket:
2:25-cv-00608
Filed:
2025-06-06
Patents:9667337

A patent infringement lawsuit filed on June 6, 2025, involving the assertion of twelve patents. US patent 9,667,337 is asserted as one of five patents categorized as 'Intelligent Wireless Broadband Relay Patents' in the complaint.

Massively Broadband LLC v. Samsung Electronics Co., Ltd. et al.

Ongoing
Docket:
2:25-cv-00608
Filed:
2025-06-06
Patents:11063625

Massively Broadband LLC filed a patent infringement lawsuit against Samsung Electronics Co., Ltd. and Samsung Electronics America, Inc. asserting patent 11063625. The case is ongoing in the Texas Eastern District Court, with a trial date scheduled for April 19, 2027.

Massively Broadband LLC v. Samsung Electronics Co., Ltd. et al.

active
Docket:
2:25-cv-00608
Filed:
2025-06-06
Patents:10797783

Massively Broadband LLC filed a patent infringement lawsuit against Samsung Electronics Co., Ltd. and Samsung Electronics America, Inc. in the Eastern District of Texas. The ongoing case alleges infringement of a dozen patents, including US Patent 10797783.

Maxell, Ltd. v. Samsung Electronics Co., Ltd. et al.

ongoing
Docket:
5:25-cv-00052
Filed:
2025-04-21
Patents:10812646

Maxell, Ltd. filed a patent infringement suit against Samsung Electronics Co., Ltd. and Samsung Electronics America, Inc. The case is ongoing, with Samsung having filed a motion to stay proceedings pending inter partes reviews, including one related to US patent 10812646.

SnapAid, Ltd. v. Samsung Electronics Co., Ltd. et al.

pending
Docket:
2:25-cv-00378
Filed:
2025-04-10
Patents:10009537

SnapAid, Ltd. filed a patent infringement action against Samsung Electronics Co., Ltd. and Samsung Electronics America, Inc. in the Eastern District of Texas, asserting eight related patents including U.S. 10,009,537. Samsung filed counterclaims including a declaratory judgment that the '537 patent is invalid. The case is pending, with trial set for April 2027.

Radian Memory Systems LLC v. Samsung Electronics Co., Ltd. et al.

active
Docket:
2:24-cv-01073-JRG
Filed:
2024-12-24

Radian Memory Systems LLC sued Samsung Electronics Co., Ltd. and Samsung Electronics America, Inc. in the Eastern District of Texas, asserting seven patents, none of which is the 118 patent. The 118 patent is a parent of three of the asserted patents. Radian withdrew its corrected preliminary-injunction motion and moved to dismiss without prejudice; Samsung opposed, and the outcome was not final in the retrieved sources.

Radian Memory Systems LLC v. Samsung Electronics Co., Ltd. et al.

active
Docket:
2:24-cv-01073-JRG
Filed:
2024-12-24

Radian Memory Systems asserts seven U.S. patents against Samsung Electronics entities. Public documents identified US 11,544,183 and the '656 and '772 patents as asserted, but the narrative could not confirm that US 9,785,572 was among the seven patents-in-suit.

Xifi Networks R&D, Inc. v. Samsung Electronics Co., Ltd. et al.

active
Docket:
2:24-cv-01057-JRG
Filed:
2024-12-17
Patents:11974143

This active district court case, filed by Xifi Networks R&D, Inc. against Samsung Electronics Co., Ltd. and Samsung Electronics America, Inc., is ongoing. Defendants' motion to stay proceedings pending Inter Partes Review (IPR) and Post-Grant Review (PGR) was denied, and trial is scheduled for October 19, 2026.

XiFi Networks R&D, Inc. v. Samsung Electronics Co., Ltd. et al.

Active
Docket:
2:24-cv-01057-JRG
Filed:
2024-12-17
Patents:12169756

XiFi Networks R&D, Inc. sued Samsung Electronics Co., Ltd. and Samsung Electronics America, Inc. for patent infringement. The case is active, with a trial set for October 19, 2026, and a claim construction hearing scheduled for April 29, 2026.

Netlist, Inc. v. Samsung Electronics Co., Ltd. et al.

pending
Docket:
2024-2240
Filed:
2024-08-19

Netlist's appeal from PTAB Final Written Decisions in IPR2022-01427 (the '160 patent) and related IPRs. The appeal was consolidated with the '060-patent appeal, No. 2024-2241, and lists Samsung and Micron entities as appellees.

Freedom Patents, LLC v. Samsung Electronics Co., Ltd. et al.

Dismissed with prejudice
Filed:
2024-06-14
Terminated:
2024-08-23
Patents:8514815

Freedom Patents, LLC sued Samsung Electronics Co., Ltd., Samsung Electronics America, Inc., and Harman International Industries, Inc. for patent infringement. The case was dismissed with prejudice by Chief Judge Amos L. Mazzant, with each party bearing its own attorney fees, costs, and expenses.

Staton Techiya, LLC v. Samsung Electronics Co., Ltd. et al.

dismissed
Docket:
2024-1917
Filed:
2024-06-06
Terminated:
2024-12-20

Staton Techiya appealed the district court's final judgment holding the asserted patents unenforceable. The Federal Circuit dismissed the appeal on December 20, 2024, pursuant to a joint stipulation of voluntary dismissal.

Harbor Island Dynamic, LLC v. Samsung Electronics Co., Ltd. et al.

stayed
Docket:
2:24-cv-00140-JRG-RSP
Filed:
2024-02-27

Harbor Island Dynamic sued Samsung for infringement of the '886 patent and related patents based on Samsung's Antenna Switch and Coupler die (e.g., PK5562_01), allegedly used in the Galaxy S22 Ultra. The case was stayed pending the PTAB IPR proceedings.

Maxell, Ltd. v. Samsung Electronics Co., Ltd. et al.

terminated; on appeal
Docket:
5:23-cv-00092-RWS
Filed:
2023-09-07
Terminated:
2025-09-26

Maxell sued Samsung for infringement of multiple patents, including U.S. 11,017,815. A May 2025 jury found willful infringement of '815 claims 1, 21, and 24 and awarded $111,720,099 total, but the court later granted JMOL of non-infringement for the three tried patents, overturning the verdict; Maxell appealed.

Daedalus Prime LLC v. Samsung Electronics Co., Ltd. et al.

stayed
Docket:
2:22-cv-00352
Filed:
2022-09-12

Daedalus Prime LLC asserted eight patents, including the '080 patent, against Samsung and TSMC in the Eastern District of Texas. The case was stayed in October 2022 under 28 U.S.C. § 1659 pending a parallel ITC investigation; it was consolidated with 2:22-cv-00353 and 2:22-cv-00354 and then deconsolidated per the stay order.

Manufacturing Resources International, Inc. v. Samsung Electronics Co., Ltd. et al.

Open/pending
Docket:
2:22-cv-00320
Filed:
2022-08-19
Patents:8854595

MRI's complaint asserted infringement of the '595 patent (among others) and sought injunctive and monetary relief. A parallel IPR invalidated the challenged claims, which may affect this case's viability.

Manufacturing Resources International, Inc. v. Samsung Electronics Co., Ltd. et al.

closed (disposition unverified)
Docket:
2:22-cv-00320
Filed:
2022-08-19
Patents:11013142

MRI sued Samsung entities in the Eastern District of Texas asserting five patents, including U.S. Patent No. 11,013,142. The docket is closed as of March 2024, but the specific disposition is unverified.

Netlist, Inc. v. Samsung Electronics Co., Ltd. et al.

judgment entered
Docket:
2:22-cv-00293-JRG
Filed:
2022-08-01
Terminated:
2024-12-02

Netlist asserted the '912 patent with U.S. 11,093,417 and 10,268,608 against Samsung. On Nov. 22, 2024, the jury found infringement of at least one claim of each patent, willful, and awarded a $118,000,000 lump-sum royalty; judgment was entered Dec. 2, 2024.

Staton Techiya, LLC et al. v. Samsung Electronics Co., Ltd. et al.

closed; on appeal
Docket:
2:22-cv-00053-JRG-RSP (consolidated into lead case 2:21-cv-00413-JRG-RSP)
Filed:
2022-02-14
Terminated:
2024-06-21

Patent infringement suit asserting U.S. Patents 11,244,666, 11,217,237, 11,057,701, and 11,039,259. The court consolidated it into lead case 2:21-cv-00413 and entered final judgment on June 21, 2024, holding the asserted claims unenforceable against Samsung due to unclean hands and dismissing Techiya's claims with prejudice; Techiya appealed to the Federal Circuit.

Netlist, Inc. v. Samsung Electronics Co., Ltd. et al.

on appeal
Docket:
2:21-cv-00463-JRG
Filed:
2021-12-20
Terminated:
2023-08-11

Netlist sued Samsung for infringement of the '918 patent and other patents. A jury found willful infringement and no invalidity, awarding a composite $303,150,000, with $147,225,000 allocated jointly to the '918 and '054 patents. Final judgment entered August 11, 2023; Samsung's appeal is pending.

Netlist, Inc. v. Samsung Electronics Co., Ltd. et al.

settled
Docket:
2:21-cv-00463-JRG
Filed:
2021-12-20
Patents:10949339

Netlist sued Samsung entities for patent infringement in the Eastern District of Texas. The '339 patent was one of five patents tried, with asserted claims 1, 8, and 9. A jury found willful infringement of all five patents and awarded $303.15 million; final judgment was entered Aug. 11, 2023. Samsung appealed, and the parties later settled all pending litigation in 2026.

Staton Techiya, LLC et al. v. Samsung Electronics Co., Ltd. et al.

closed — dismissed with prejudice; judgment for Samsung; claims unenforceable
Docket:
2:21-cv-00413-JRG-RSP
Filed:
2021-11-04
Terminated:
2024-06-20
Patents:10405082

Patent infringement action asserting the '082 patent along with nine other U.S. patents identified in the narrative only by last three digits, against Samsung products including Galaxy Buds+, Galaxy S20, and Bixby. After a March 2024 bench trial, the court found Techiya's asserted claims unenforceable against Samsung due to unclean hands; final judgment entered June 21, 2024, dismissed the infringement claims with prejudice and named Samsung the prevailing party. Consolidated with 2:22-cv-00053-JRG-RSP.

Parus Holdings, Inc. v. Samsung Electronics Co., Ltd. et al.

active
Docket:
6:21-cv-01073-ADA
Filed:
2021-10-15

Parus asserted the '455, '705, and '402 patents against Samsung in the Western District of Texas. Joint claim construction proceeded through late 2022 with coordinated defendants, but the final disposition was not confirmed.

AlmondNet, Inc. et al. v. Samsung Electronics Co., Ltd. et al.

transferred
Docket:
6:21-cv-00891
Filed:
2021-08-26
Patents:10715878

AlmondNet and Intent IQ sued Samsung and AdGear in W.D. Tex. asserting the ’878 patent, including claims 13–18 and 20 per preliminary invalidity contentions. The case was transferred to N.D. Cal. on November 28, 2022.

AlmondNet, Inc. et al. v. Samsung Electronics Co., Ltd. et al.

transferred
Docket:
6:21-cv-00891-ADA
Filed:
2021-08-26
Terminated:
2022-11-28
Patents:8566164

AlmondNet and Intent IQ sued Samsung entities and AdGear in W.D. Tex., asserting multiple patents including the '164 patent. The case was transferred to the Northern District of California by sealed order dated Nov. 28, 2022.

AlmondNet, Inc. et al. v. Samsung Electronics Co., Ltd. et al.

Docket:
6:21-cv-00891
Filed:
2021-08-26
Patents:10321198

Patent infringement action by AlmondNet and Intent IQ against Samsung and related entities in W.D. Tex.; related N.D. Cal. action lists the '198 patent among the asserted patents.

Smart Mobile Technologies LLC v. Samsung Electronics Co., Ltd. et al.

Dismissed with Prejudice
Docket:
6:21-cv-00701
Filed:
2021-07-02
Terminated:
2024-07-15
Patents:9191083

All claims, counterclaims, and affirmative defenses were dismissed with prejudice, with each party bearing its own costs. No damages or injunctive relief were awarded, reflecting a negotiated resolution.

Smart Mobile Technologies LLC v. Samsung Electronics Co., Ltd. et al.

dismissed with prejudice
Docket:
6:21-cv-00701
Filed:
2021-07-02
Terminated:
2024-07-15
Patents:9756168

Smart Mobile Technologies LLC asserted U.S. 9,756,168 among twelve U.S. patents against Samsung Electronics Co., Ltd. and Samsung Electronics America, Inc. in the Western District of Texas. The case was dismissed with prejudice on July 15, 2024, under a joint motion to vacate the claim construction order and dismiss with prejudice, with no damages or injunctive relief awarded.

Smart Mobile Technologies LLC v. Samsung Electronics Co., Ltd. et al.

pending
Docket:
6:21-cv-00701-ADA
Filed:
2021-07-02
Patents:9049119

Smart Mobile Technologies LLC sued Samsung Electronics Co., Ltd. and Samsung Electronics America, Inc. for patent infringement, asserting 12 patents including US 9,049,119, against Galaxy devices. Samsung's motion to transfer to N.D. Cal. was denied, and the case remained pending in W.D. Tex. with parallel IPRs informing the schedule.

Smart Mobile Technologies LLC v. Samsung Electronics Co., Ltd. et al.

dismissed with prejudice
Docket:
6:21-cv-00701
Filed:
2021-07-02
Terminated:
2024-07-15
Patents:9019946

Patent infringement suit asserting the '946 patent as part of a larger portfolio against Samsung entities. The court granted a joint motion to vacate the claim-construction order and dismiss with prejudice on/about July 15, 2024; each party bore its own costs.

Smart Mobile Technologies LLC v. Samsung Electronics Co., Ltd. et al.

dismissed with prejudice
Docket:
6:21-cv-00701
Filed:
2021-07-02
Terminated:
2024-07-15
Patents:8842653

Smart Mobile Technologies LLC sued Samsung entities in W.D. Tex., with the '653 patent among 12 asserted patents. The case was dismissed with prejudice on July 15, 2024, each party bearing its own costs.

Smart Mobile Technologies LLC v. Samsung Electronics Co., Ltd. et al.

dismissed with prejudice
Docket:
6:21-cv-00701
Filed:
2021-07-02
Terminated:
2024-07-15
Patents:8824434

Smart Mobile Technologies sued Samsung Electronics Co., Ltd. and Samsung Electronics America, Inc. in W.D. Tex. involving the '434 patent. The case was dismissed with prejudice on July 15, 2024; the earlier claim-construction order was vacated, and each party bore its own costs.

Smart Mobile Technologies LLC v. Samsung Electronics Co., Ltd. et al.

dismissed with prejudice
Docket:
6:21-cv-00701
Filed:
2021-07-02
Terminated:
2024-07-15
Patents:8442501

Patent infringement suit asserting U.S. Patent No. 8,442,501 against Samsung entities. The court granted the parties' joint motion to vacate the claim construction order and dismiss with prejudice on July 15, 2024; all claims, counterclaims, and affirmative defenses were dismissed with prejudice, each party bearing its own costs.

XR Communications, LLC d/b/a Vivato Technologies v. Samsung Electronics Co., Ltd. et al.

consolidated
Docket:
6:21-cv-00626
Filed:
2021-06-16
Patents:10594376

2021 wireless networking campaign case in W.D. Tex. against Samsung; consolidated with 6:23-cv-00125, and Samsung filed IPR2022-00613. Listed by XR as involving the '376 patent in IPR2022-00613 mandatory notices.

Proxense, LLC v. Samsung Electronics Co., Ltd. et al.

dismissed with prejudice
Docket:
6:21-cv-00210-ADA
Filed:
2021-03-05
Terminated:
2023-01-19

Proxense sued Samsung Electronics Co., Ltd. and Samsung Electronics America, Inc. in the Western District of Texas, asserting several patents including US 9,049,188 against Samsung Pay/Galaxy devices. The case was resolved before trial by consent judgment/stipulated dismissal with prejudice, closing January 19, 2023, with no court ruling on validity or infringement of the '188 patent.

Power2B, Inc. v. Samsung Electronics Co., Ltd. et al.

not finally adjudicated
Docket:
6:20-cv-01183-ADA
Filed:
2020-12-23

Power2B, Inc. sued Samsung Electronics Co., Ltd. and Samsung Electronics America, Inc. in the Western District of Texas, Waco Division, asserting U.S. Patent No. 8,610,675 and U.S. Patents 8,624,850, 9,317,170, 9,569,093, and 10,156,931. Power2B's infringement contentions asserted claims 1, 11, and 13 of the '675 patent. The case was substantially overtaken by parallel PTAB proceedings, and no final merits judgment on the '675 patent was found in the narrative.

RFCyber Corp. v. Samsung Electronics Co., Ltd. et al.

settled
Docket:
2:20-cv-00335-JRG-RSP
Filed:
2020-10-16
Patents:9189787

RFCyber sued Samsung Electronics Co., Ltd. and Samsung Electronics America, Inc. in E.D. Tex. (Marshall) as a member case to 2:20-cv-00274. A second mediation was successful on 2022-02-10; a joint motion to stay and notice of settlement were filed the same day, and the case was stayed 2022-02-11.

RFCyber Corp. v. Samsung Electronics Co., Ltd. et al.

settled
Docket:
2:20-cv-00335-JRG
Filed:
2020-10-16
Terminated:
2023-03-06
Patents:8448855

Member case consolidated into 2:20-cv-00274. Docket shows termination on Mar. 6, 2023; filings reference a confidential settlement agreement, and Samsung's '855 IPR was denied institution.

DivX, LLC v. Samsung Electronics Co., Ltd. et al.

terminated/settled
Docket:
337-TA-1222
Filed:
2020-09-10

Section 337 investigation filed by DivX against Samsung, LG, MediaTek/MStar, Realtek, and TCL entities. The asserted patents included the '486 patent. Realtek was terminated in 2021; the investigation was terminated as to TCL in May 2022 based on a settlement agreement.

SpaceTime3D, Inc. v. Samsung Electronics Co., Ltd. et al.

Terminated/closed
Docket:
2:19-cv-00372-JRG
Filed:
2019-11-14

SpaceTime3D sued Samsung in the Eastern District of Texas alleging infringement of the '654 patent and related patents. The case was terminated/closed; a Markman claim-construction order issued December 7, 2020, and a motion to stay was denied December 4, 2020.

Acorn Semi, LLC v. Samsung Electronics Co., Ltd. et al.

settled on appeal
Docket:
2:19-cv-00347-JRG
Filed:
2019-10-23

Patent infringement suit by Acorn Semi against Samsung entities. The patents actually asserted were U.S. Patent Nos. 7,084,423; 8,766,336; 9,209,261; 9,461,167; 9,905,691; and 10,090,395; the '542 patent was not asserted. A May 19, 2021 jury verdict found infringement and awarded $25 million; Samsung appealed (Appeal No. 22-1499), and the parties settled in January 2023 while the appeal was pending.

Kannuu Pty Ltd. v. Samsung Electronics Co., Ltd. et al.

active
Docket:
1:19-cv-04297
Filed:
2019-05-10
Patents:11573939

Kannuu alleged that Samsung's Smart TVs and Blu-ray players infringed on its patents, including the '393 patent. The case was stayed pending IPR proceedings, but as of July 2025 was described as active, with the court granting Kannuu leave to file a second amended complaint to add new patents.

Kannuu Pty Ltd. v. Samsung Electronics Co., Ltd. et al.

ongoing
Docket:
1:19-cv-04297-ER
Filed:
2019-05-10
Patents:11200252

The district court case is ongoing and involves several patents asserted by Kannuu against Samsung for alleged infringement by various Samsung Smart TVs and Blu-ray players. U.S. Patent 11,200,252 was asserted in this action after the original complaint was filed.

Kannuu Pty Ltd. v. Samsung Electronics Co., Ltd. et al.

active
Docket:
1:19-cv-04297-ER
Filed:
2019-05-10

Patent infringement and breach of NDA action. The original complaint asserted the '393, '852, '354, and '264 patents; the First Amended Complaint added the '579 patent. The case was stayed pending IPRs; the original patents were invalidated, and in 2025 the court granted leave to amend to substitute two newly-issued patents. Ongoing as of the record.

Realtime Adaptive Streaming LLC v. Samsung Electronics Co., Ltd. et al.

Docket:
6:18-cv-00113-JRG-JDL
Filed:
2018-03-09
Patents:RE46777

District court action filed 2018-03-09. The amended complaint expressly asserts RE46777, identifying it as the reissue of U.S. Patent No. 8,634,462. Final disposition not confirmed in retrieved sources.

Fundamental Innovation Systems International LLC v. Samsung Electronics Co., Ltd.

settled
Docket:
2:17-cv-00145-JRG-RSP
Filed:
2017-02-21
Terminated:
2019-07-02
Patents:8541983

FISI action against Samsung in the Eastern District of Texas, Marshall Division, identified on the patent record as linked to the 8541983 family. The narrative reports it was settled and closed on July 2, 2019; it does not confirm that 8541983 specifically was among the asserted patents.

Fundamental Innovation Systems International LLC v. Samsung Electronics Co., Ltd. et al.

settled
Docket:
2:17-cv-00145
Filed:
2017-02-21
Patents:7239111

FISI asserted the '111 patent against Samsung entities in E.D. Tex. The court issued a claim-construction order on 2018-01-31 construing 'identification signal,' 'USB adapter,' and §112 ¶6 means terms; the case settled.

Fundamental Innovation Systems International LLC v. Samsung Electronics Co., Ltd. et al.

settled
Docket:
2:17-cv-00145
Filed:
2017-02-21
Patents:6936936

FISI sued Samsung entities in E.D. Tex., asserting the '936 patent among the patents-in-suit. Claim construction proceeded before Judge J. Rodney Gilstrap, and the case reportedly resolved via license/settlement, with docket activity into 2019.

Raytheon Company v. Sony Corporation et al.

affirmed
Docket:
2017-1554, 2017-1556, 2017-1557
Filed:
2017-02-01
Terminated:
2018-04-02
Patents:5591678

Raytheon appealed from the PTAB IPR final decisions concerning the ’678 patent. The Federal Circuit affirmed the Board’s obviousness holdings in a nonprecedential decision issued April 2, 2018.

Raytheon Company v. Samsung Electronics Co., Ltd. et al.

dismissed
Docket:
2:15-cv-00341
Filed:
2015-03-06
Terminated:
2018-06-08
Patents:5591678

Raytheon asserted the ’678 patent under 35 U.S.C. § 271(g) against Samsung entities over back-illuminated CMOS image sensors. The case was stayed pending co-pending IPRs, and after the patent claims were cancelled the parties’ joint motion to dismiss was granted on June 8, 2018.

Rembrandt Wireless Technologies, LP v. Samsung Electronics Co., Ltd. et al.

settled
Docket:
2:13-cv-00213
Filed:
2013-03-15

Rembrandt asserted U.S. 8,457,228 and U.S. 8,023,580 against Samsung entities and BlackBerry entities. A 2015 jury verdict found infringement and awarded $15.7M; the Federal Circuit affirmed claim construction and denial of JMOL but vacated and remanded on marking-based damages. The E.D. Tex. action was dismissed with prejudice in August 2019 after settlement.

Technology Properties Limited LLC et al. v. Samsung Electronics Co., Ltd.

remanded
Docket:
3:12-cv-03877
Filed:
2012-07-24
Patents:5809336

District-court counterpart to the ITC case asserting the '336 patent. Stipulated final judgment of non-infringement entered Nov. 13, 2015; appealed. Federal Circuit affirmed in part and vacated in part on claim construction and remanded. Further appeals filed in 2018; mandate in 18-1439 issued June 19, 2019.

Apple Inc. v. Samsung Electronics Co., Ltd.

final determination
Docket:
337-TA-796
Filed:
2011-07-05
Patents:D504889

ITC Section 337 investigation brought by Apple against Samsung; D504889 appears among the Apple IP rights identified in the investigation record and was also cited by Samsung as prior art against other Apple rights. The Commission's Aug. 2013 final determination is reported to have found a violation on iPhone-related design and utility patents, but D504889's specific disposition is unverified.

Apple Inc. v. Samsung Electronics Co., Ltd. et al.

judgment; '607 withdrawn; on appeal
Docket:
5:11-cv-01846-LHK
Filed:
2011-04-15

Apple asserted US 7,663,607 against Samsung, but withdrew it in July 2012 before trial. The case was tried on other Apple patents, including the '381 bounce-back, '915 multi-touch/pinch-to-zoom, and '163 double-tap-to-zoom patents, and resulted in a jury verdict and subsequent appeals.

Apple Inc. v. Samsung Electronics Co., Ltd. et al.

claim construction/discovery only
Docket:
5:11-cv-01846-LHK
Filed:
2011-04-15
Patents:7812828

'828 was among the patents in suit and was expressly included in the court's claim-construction order (Dkt. 849, construing '711, '002, '381, '607, '828, '915, '891) and in Apple's Patent L.R. 4-5 submissions. It was not among the utility patents tried to the August 2012 jury verdict and produced no infringement verdict.

Digital Security Systems Corporation, LLC v. Samsung Electronics Co., Ltd. et al.

voluntarily dismissed without prejudice
Docket:
2:08-cv-00316
Filed:
2008-08-11
Terminated:
2009-02-23
Patents:6052780

Digital Security Systems Corporation, LLC sued Samsung Electronics and numerous electronics manufacturers and retailers in the Eastern District of Texas for infringement of U.S. Patent No. 6,052,780 based on Blu-ray Disc players. The case was voluntarily dismissed without prejudice on February 23, 2009.

W&Wsens Devices Inc. v. Samsung Electronics Co., Ltd. et al.

Active
Docket:
2:24-cv-00854-JRG
Patents:11621360

W&Wsens Devices Inc. sued Samsung for patent infringement, asserting patent 11621360 and other related patents. The court denied Samsung's motions to stay pending PTAB review and to transfer the case to the Northern District of California. Samsung was granted leave to amend its invalidity contentions.

Telcom Ventures LLC v. Samsung Electronics Co., Ltd. et al.

Active
Docket:
2:24-cv-00691-JRG
Patents:11770756

Telcom Ventures LLC filed a patent infringement complaint against Samsung Electronics Co., Ltd. and Samsung Electronics America, Inc. The case is active in the Eastern District of Texas with a jury selection date set for June 22, 2026.

G+ Communications, LLC v. Samsung Electronics Co., Ltd. et al.

invalidated on appeal
Docket:
2:22-CV-00078-JRG
Terminated:
2026-07-30
Patents:10736130

A jury initially found Samsung infringed US Patent 10736130 and another patent, awarding damages. Following a PTAB ruling that US Patent 10736130 was invalid, the district court wiped away the verdict for this patent. The PTAB's invalidity ruling for US Patent 10736130 was affirmed by the Federal Circuit on July 30, 2026.

Headwater Research LLC v. Samsung Electronics Co., Ltd. et al.

dismissed (settled)
Docket:
2:24-cv-00228-JRG-RSP

Headwater sued Samsung for infringement of '055 and related patents. The parties filed a joint motion to dismiss; in September 2025 the court dismissed Headwater's infringement claims with prejudice and Samsung's counterclaims/defenses without prejudice, each side bearing its own fees and costs.

Lab Technology LLC v. Samsung Electronics Co., Ltd.

dismissed without prejudice
Docket:
2:24-cv-00324
Court:
E.D. Tex.
Patents:8503973

Lab Technology LLC sued Samsung Electronics Co., Ltd. in E.D. Tex. Five patents were asserted, including 8,503,973. The court dismissed the case without prejudice under Rule 41(a)(1)(A)(i) after plaintiff's notice of dismissal; no merits ruling.

Lab Technology LLC v. Samsung Electronics Co., Ltd.

dismissed without prejudice
Docket:
2:24-cv-00324
Court:
E.D. Tex.
Patents:9219982

Lab Technology LLC asserted US 9,219,982 against Samsung Electronics Co., Ltd. in E.D. Tex. The case was voluntarily dismissed without prejudice under Rule 41(a)(1)(A)(i); Samsung never appeared. The accused product was the Galaxy Watch6.

Smart Mobile Technologies LLC v. Samsung Electronics Co., Ltd. et al.

dismissed with prejudice
Docket:
6:21-cv-00701-ADA
Terminated:
2024-07-15
Patents:9614943

Smart Mobile Technologies LLC asserted U.S. Patent 9,614,943 (one of 12 asserted patents) against Samsung Electronics Co., Ltd. and Samsung Electronics America, Inc. in W.D. Tex. The case was dismissed with prejudice on July 15, 2024 via a joint motion, with no damages or injunctive relief awarded.

Maxell, Ltd. et al. v. Samsung Electronics Co., Ltd. et al.

on appeal
Docket:
5:23-cv-00092

Maxell asserted seven patents, including US 11,223,757, against Samsung. The court granted summary judgment of non-infringement on the '757 and '590 patents pre-trial; after a jury verdict on other patents, the district court granted Samsung JMOL, and Maxell appealed and sought a stay pending related PTAB proceedings.

Smart Mobile Technologies LLC v. Samsung Electronics Co., Ltd. et al.

active
Docket:
6:21-cv-00701
Patents:8472937

Smart Mobile sued Samsung Electronics Co., Ltd. and Samsung Electronics America, Inc. in W.D. Tex., Waco Division (filed July 1–2, 2021), asserting many of the same patents as the Apple case, including U.S. 8,472,937. The court denied a stay pending IPR alongside the Apple case, and Samsung pursued § 1404(a) transfer to N.D. Cal.

Chien-Min Sung v. Samsung Electronics Co., Ltd. et al.

dismissed (reported, unverified)
Docket:
26-1528
Patents:9138862

Appeal from PTAB IPR2024-00534 concerning U.S. 9,138,862. The record indicates the appeal was resolved by dismissal pursuant to settlement, but the narrative did not independently verify the 26-1528 order.

Kannuu Pty Ltd. v. Samsung Electronics Co., Ltd. et al.

affirmed; rehearing denied; mandate issued
Docket:
2021-1638
Terminated:
2021-12-21
Patents:8996579

Appeal from S.D.N.Y. No. 1:19-cv-04297-ER addressing whether the NDA's forum-selection clause barred Samsung from filing IPRs on Kannuu's patents, including U.S. Patent No. 8,996,579. The Federal Circuit affirmed the district court; panel and en banc rehearing were denied, and the mandate issued December 21, 2021.

Fundamental Innovation Systems International LLC v. Samsung Electronics Co., Ltd. et al.

settled / dismissed
Docket:
2:17-cv-00145-JRG-RSP
Patents:7893655

FISI asserted the '655 patent against Samsung Electronics in the Eastern District of Texas. Samsung was a co-petitioner with ZTE in IPR2018-00425 before settling and being dismissed; the related Samsung IPR on the '173 patent was terminated by joint motion in July 2018.

Lab Technology LLC v. Samsung Electronics Co., Ltd.

dismissed
Docket:
2:24-cv-00324
Court:
E.D. Tex.
Patents:8498388

Lab Technology LLC filed suit against Samsung Electronics Co., Ltd. in E.D. Tex. asserting US 8,498,388. The case was voluntarily dismissed without prejudice under Rule 41(a)(1)(A)(i), and Samsung never appeared.