The RegistryCounty Record · California

Intellectual Property Lawyers in Orange County, California

Every intellectual property attorney and intellectual property lawyer listing on this page traces back to the State Bar of California's official roll, filtered to intellectual property matters arising in Orange County. Verification describes profile identity, not quality or outcomes.

California's third-most-populous county; the Central Justice Center and the Civil Complex Center in Santa Ana anchor a court system known for complex civil administration. Venue for most intellectual property matters arising in the county lies with the Superior Court of California, County of Orange, seated at Santa Ana.

Before comparing counsel, note the clock. Under 17 U.S.C. § 507(b), the governing period is three years for copyright claims; trade secret claims run three years (Cal. Civ. Code § 3426.6). Patent damages reach back six years (35 U.S.C. § 286). Trademark claims under the Lanham Act borrow analogous state periods and are shaped by laches.

This page is the Orange County chapter of the registry's statewide record · Intellectual Property Attorneys in California collects all 58 counties.

The clock & the court

Statute of limitations

Three years for copyright claims; trade secret claims run three years (Cal. Civ. Code § 3426.6).

17 U.S.C. § 507(b)

Patent damages reach back six years (35 U.S.C. § 286). Trademark claims under the Lanham Act borrow analogous state periods and are shaped by laches.

Court of record

Superior Court of California, County of Orange.

County seat: Santa Ana

Official court information, locations, and filing rules: www.occourts.org

Intellectual Property · Orange County roster

1,182 attorneys on the official State Bar of California roll list intellectual property among their practice areas with an address of record in Orange County.

1,148 of them hold an active licence; the remainder are recorded as inactive and are not currently eligible to practise.

The roster concentrates in Irvine (560), Newport Beach (137), Costa Mesa (104) and Aliso Viejo (37).

6 hold a State Bar Certified Legal Specialist designation, a certification issued by the State Bar's Board of Legal Specialization, and not a rating or a ranking.

66 are recorded as taking client work in a language other than English.

Admission years on this roster run from 1963 to 2026.

The employers most represented here are Knobbe Martens Olson & Bear (25), Knobbe Martens et al LLP (21) and Knobbe Martens Olson & Bear LLP (20).

Abigail Dagher

Intellectual Property · Irvine

Bar #352214 · Admitted 2023

Official record

Sona D. Dalal

Intellectual Property · Santa Ana

Bar #223114 · Admitted 2002

Official record

Sean F. Daley

Business Law · Irvine

Bar #272493 · Admitted 2010

Official record

Andrew S. Dallmann

Intellectual Property · Laguna Hills

Bar #206771 · Admitted 2000

Official record

Sang N. Dang

Intellectual Property · Costa Mesa

Bar #214558 · Admitted 2001

Official record

Tri C. Dang

Intellectual Property · Irvine

Bar #303819 · Admitted 2015

Official record

Kevin M. Danielczyk

Intellectual Property · Irvine

Bar #364357 · Admitted 2025

Official record

Douglas H. Danner

Intellectual Property · Newport Beach

Bar #237684 · Admitted 2005

Official record

Tom H. Dao

Intellectual Property · Irvine

Bar #200925 · Admitted 1999

Official record

David J. Darnell

Business Law · Irvine

Bar #210166 · Admitted 2000

Official record

The full Orange County roster · 1,148 attorneys with an active license and a intellectual property practice area: is listed by surname in the 6 sections below.

Intellectual Property matters in Orange County

The matters this field covers, as Californians search for them. Each attorney's own profile states which of these they take.

  • trademark registration and disputes
  • copyright infringement
  • patent prosecution and litigation
  • trade secrets
  • licensing agreements
  • domain name and online infringement
  • DMCA takedowns
  • entertainment and brand rights
  • software and technology licensing
  • IP due diligence in business sales

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Intellectual Property questions, cited

Do I need to register a copyright to be protected?

Protection attaches automatically when an original work is fixed in tangible form (17 U.S.C. § 102), but registration is required before a U.S. author can file an infringement suit (17 U.S.C. § 411, confirmed in Fourth Estate v. Wall-Street.com (2019) 586 U.S. 296), and timely registration unlocks statutory damages up to $150,000 for willful infringement and attorney fees (17 U.S.C. §§ 412, 504–505).

What is the difference between a trademark, copyright, and patent?

A trademark protects brand identifiers (names, logos, slogans) in commerce (15 U.S.C. § 1051 et seq.); rights arise from use and strengthen with federal registration. A copyright protects original creative works (17 U.S.C. § 102). A patent protects inventions for roughly 20 years from filing (35 U.S.C. § 154) and only a registered patent attorney or agent may prosecute applications before the USPTO.

How are trade secrets protected in California?

Under the California Uniform Trade Secrets Act (Cal. Civ. Code § 3426 et seq.) and the federal Defend Trade Secrets Act (18 U.S.C. § 1836): information with independent economic value from secrecy, subject to reasonable protection efforts, is enforceable against misappropriation. Claims run three years from discovery (Civ. Code § 3426.6). California pairs this with a strong ban on employee non-competes (Bus. & Prof. Code § 16600).

Does my employer own what I invent or create in California?

Work created within the scope of employment is generally the employer's (17 U.S.C. § 201(b) for copyrights; invention-assignment agreements for patents). But Cal. Lab. Code § 2870 voids assignment provisions reaching inventions developed entirely on your own time without employer equipment or trade secrets, unless they relate to the employer's business or your work, a protection unique to a handful of states.

What should I do if someone is infringing my trademark or copying my work?

Document the infringement, confirm your registrations are in order, and act promptly; remedies favor diligent owners, and laches can bar delayed claims. Options range from DMCA takedown notices for online copies (17 U.S.C. § 512) and cease-and-desist letters to federal suits seeking injunctions and damages (15 U.S.C. § 1116–1117 for trademarks; 17 U.S.C. §§ 502–505 for copyrights).

Legal information, not legal advice.

From the answer files

Every intellectual property attorney in Orange County, by surname

Intellectual Property by city in Orange County

Related counsel in Orange County

Intellectual Property in nearby counties

Source: 17 U.S.C. § 507(b) · State Bar of California licensee records · Checked: · Maintained by the California Attorney Registry from official State Bar of California records. Legal information, not legal advice.

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