Counsel registry
The Dacus Firm
68 case appearances — 36 as plaintiff counsel · 32 as defendant counsel.
Firm overview
As of May 1, 2026
The Dacus Firm: Professional Summary
The Dacus Firm, P.C. is a boutique litigation firm headquartered in Tyler, Texas. While the firm handles a range of business litigation, its primary focus is patent litigation, with deep experience in the U.S. District Court for the Eastern District of Texas. The firm's website states it has handled hundreds of patent cases in the district for both plaintiffs and defendants, serving as both lead and local counsel. Publicly available rankings in major legal directories like AmLaw or Chambers were not found for the firm, which is consistent with its status as a specialized regional practice rather than a large national firm.
The firm’s patent practice centers on representing plaintiffs. Based on its tracked caseload, The Dacus Firm exclusively appears on the plaintiff side, often acting as lead counsel for patent assertion entities. The subject matter of its recent litigation points to a specialty in high-technology sectors. For example, the firm is representing Modulus Systems LLC in a case concerning radio frequency (RF) module technology and ContentNexus LLC in an action involving signal processing and personalized media content.
Key cases in the firm's recent docket include ContentNexus LLC v. Buildscale Inc. and Modulus Systems LLC v. Loytec Electronics GMBH, where the firm is lead counsel for the plaintiffs. Additionally, the firm serves as local counsel for the plaintiff in Bunker Hill Technologies LLC v. Toyota Motor North America Inc. et al. Outcomes for these recently filed cases are not yet publicly available. The firm's website mentions past successes, including multi-million dollar judgments and defense verdicts, though specific citations for those results are not provided.
The firm is led by Deron Dacus, a board-certified civil trial lawyer with extensive experience in the Eastern District of Texas. Mr. Dacus has been selected to Super Lawyers for his work in intellectual property. The firm's public profile and litigation history do not indicate a significant practice before the Patent Trial and Appeal Board (PTAB), as no representative IPR or PGR filings were identified in public searches.
Attorneys
Roles
- local counsel34
- Local Counsel19
- of counsel11
- lead counsel10
- Lead Counsel5
- Of Counsel5
- counsel3
- lead attorney1
- attorney1
- lead counsel or local counsel1
- Lead Counsel / Local Counsel1
- Local Counsel or Co-Lead Counsel1
Cases (68)
- Δ defendantAdvanced Memory Technologies, LLC v. SK Hynix Inc.Deron R. Dacus · Local Counsel
- Δ defendantAlmondnet, Inc. v. Amazon.com, Inc.Deron Dacus · local counsel
- π plaintiffAlmondnet, Inc. v. Oracle America, Inc.Brady P. P. P. Theis · local counsel
- π plaintiffAlpha Modus Corp v. Circle K Stores IncBrent E. Dacus · lead attorney
- π plaintiffAlpha Modus Corp. v. Foot Locker, Inc.Deron Dacus · local counsel
- π plaintiffAlpha Modus, Corp. v. Meijer, Inc.Deron R. Dacus · Lead Counsel / Local Counsel
- π plaintiffAlpha Modus, Corp. v. Mood Media, LLCDeron R. Dacus · Local Counsel
- π plaintiffAtlas Global Technologies LLC v. NETGEAR, Inc.Deron L. Dacus · local counsel
- π plaintiffAutoConnect Holdings LLC v. Volkswagen Group of America, Inc. et al.Shannon M. Dacus · local counsel
- π plaintiffBunker Hill Technologies LLC v. Toyota Motor North America Inc. et al.Deron Dacus · Local Counsel
- π plaintiffCellco Partnership d/b/a Verizon Wireless v. Fractus, S.A.Deron Dacus · Local Counsel
- Δ defendantCloud Byte LLC v. Dell Inc. et al.Deron R. Dacus · Local Counsel
- π plaintiffContentNexus LLC v. Buildscale IncWesley T. Dacus · lead counsel
- π plaintiffDatacloud Technologies LLC v. Atlassian, Inc.Deron Dacus · lead counsel
- π plaintiffDatacloud Technologies LLC v. Intuit Inc.M. Elizabeth "Liz" Dacus · lead counsel
- π plaintiffEcofactor, Inc. v. ecobee, Inc.Michael C. Dacus · local counsel
- π plaintiffEXPRESS MOBILE, INC. v. Oracle CorporationDeron R. Dacus · Lead Counsel
- Δ defendantGeneral Video LLC v. DellDeron R. Dacus · local counsel
- π plaintiffGreenthread, LLC v. OmniVision Technologies, Inc.Leslie V. Dacus · Of Counsel
- π plaintiffGreenthread, LLC v. OSRAM GmbHMichael C. Dacus · lead counsel
- Δ defendantHeadwater Research LLC v. Amazon.com, Inc.Deron R. Dacus · Local Counsel
- π plaintiffHeadwater Research LLC v. Apple Inc.Deron R. Dacus · Local Counsel
- Δ defendantHeadwater Research LLC v. Apple Inc.Deron R. Dacus · local counsel
- Δ defendantHeadwater Research LLC v. AT&T Services, Inc. et al.Deron R. Dacus · local counsel
- Δ defendantHeadwater Research LLC v. Cellco Partnership, d/b/a Verizon Wireless et al.Deron R. Dacus · counsel
- Δ defendantHeadwater Research LLC v. Charter Communications, Inc.Deron R. Dacus · Local Counsel
- Δ defendantHeadwater Research LLC v. Verizon Communications et al.Deron R. Dacus · Lead Counsel
- Δ defendantIntel Corp. et al. v. General Video LLCDeron R. Dacus · local counsel
- π plaintiffINVT SPE LLC v. T-Mobile USA, Inc.Brent E. Dacus · local counsel
- Δ defendantIoT Innovations LLC v. Resideo Technologies, Inc.Deron R. Dacus · local counsel
- Δ defendantLemko Corporation v. AT&T Inc. et al.Deron R Dacus · Local Counsel
- π plaintiffLepton Computing LLC v. Samsung Electronics America Inc et al.T. John "Johnny" Ward Jr. · local counsel
- π plaintiffModulus Systems LLC v. Loytec Electronics GMBHDeron Dacus · lead counsel
- Δ defendantMonticello Enterprises LLC v. Petco Health & Wellness Company Inc. et al.Deron R. Dacus · Local Counsel
- π plaintiffMultimedia Technologies Pte Ltd. v. Tubi, Inc.D. "Bo" M. Baucum · lead counsel
- π plaintiffOptimum Vector Dynamics LLC v. General Motors CompanyWesley Hill · of counsel
- π plaintiffOrthosie Systems, LLC v. Advantage GPS, LLCDeron R. Dacus · local counsel
- π plaintiffParkerVision, Inc. v. MediaTek Inc. et al.Deron R. Dacus · Local Counsel or Co-Lead Counsel
- π plaintiffParkerVision, Inc. v. NXP Semiconductors N.V. et al.Deron D. Dacus · Lead Counsel
- Δ defendantPegasus Wireless Innovation LLC v. Unknown DefendantDeron R. Dacus · local counsel
- Δ defendantPiney Woods Mobility LLC v. T-Mobile USA, Inc.Deron Dacus · local counsel
- Δ defendantPiney Woods Mobility LLC v. Verizon Communications, Inc.Deron R. Dacus · counsel
- π plaintiffPortus Singapore PTE Ltd & Portus Pty Ltd v. Trane Technologies Company LLCS. Calvin Capshaw · lead counsel
- π plaintiffPortus Singapore Pte Ltd. v. AT&T Inc.Deron R. Dacus · local counsel
- Δ defendantPortus Singapore Pte Ltd. v. AT&T Inc.Deron R. Dacus · local counsel
- π plaintiffPortus Singapore Pte Ltd. v. Wyze Labs, Inc.S. Calvin Capshaw · lead counsel
- Δ defendantPortus Singapore Pte Ltd. v. Wyze Labs, Inc.Deron R. Dacus · local counsel
- Δ defendantQomplx LLC v. Palo Alto Networks, Inc.Deron R. Dacus · local counsel
- Δ defendantRadiant Patents LLC v. Nokia Corporation et al.Deron R. Dacus · Local Counsel
- π plaintiffRare Breed Triggers Inc et al. v. Steven Thanh NguyenDeron R. Dacus · local counsel
- Δ defendantRare Breed Triggers Inc et al. v. Thomas Carter II et al.T. Deron Dacus · local counsel
- π plaintiffRFC Lenders of Texas, LLC v. Omnitracs, LLCDeron L. Dacus · lead counsel or local counsel
- Δ defendantTopwire LLC v. Apple, Inc.Valerie M. Verret · local counsel
- Δ defendantUniloc USA, Inc. v. Electronic Arts Inc.Michael E. Dacus · Local Counsel
- π plaintiffUntitled caseDeron R. Dacus · local counsel
- π plaintiffUntitled caseDeron R. Dacus · Local Counsel
- π plaintiffUntitled caseDeron R. Dacus · local counsel
- Δ defendantUntitled caseDeron R. Dacus · local counsel
- Δ defendantUntitled caseDeron R. Dacus · Local Counsel
- Δ defendantUntitled caseDeron R. Dacus · local counsel
- Δ defendantUntitled caseDeron R. Dacus · local counsel
- Δ defendantUntitled caseDeron R. Dacus · Local Counsel
- Δ defendantUntitled caseDeron R. Dacus · Local Counsel
- π plaintiffVannisi et al. v. LiPang et al.D. Austin Tull · Local Counsel
- Δ defendantVirtaMove, Corp. v. Amazon.com, Inc. et al.Deron Dacus · local counsel
- Δ defendantVisa USA Inc v. Cortex MCP IncM. Craig Dacus · Lead Counsel
- π plaintiffVision Works IP Corp. v. Jaguar Land Rover Automotive PLCTrenton C. Dacus · lead counsel
- π plaintiffVision Works IP Corp. v. Suzuki Motor CorporationMichael C. Dacus · Lead Counsel