Indexed from official State Bar of California records · Identity verification · Updated regularly

The RegistryPractice Area · Statewide

Find Intellectual Property Lawyers in California

Counsel for what you invent, write, and brand. This is the statewide record for intellectual property in California: every attorney on the State Bar of California's official roll whose published practice reaches this area, shown in neutral directory order.

Californians search this field under many names · intellectual property attorney, intellectual property lawyer, ip lawyer, trademark lawyer, trademark attorney · and the registry answers all of them from the same source. Below: the governing deadline with its citation, what to weigh as you read the record, the questions Californians ask with the code sections that answer them, and intellectual property coverage county by county, from Del Norte to San Diego.

The clock & the craft

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.

Reading the roster

Match the attorney to the asset: trademark clearance and prosecution, copyright licensing, trade-secret protection programs, and patent work are distinct practices, and patent prosecution requires USPTO registration. California's technology corridors mean deep benches in Santa Clara, San Francisco, and Los Angeles counties, but registration and enforcement practice is federal and can be handled statewide. Ask about flat-fee filings, search strategy before adoption of a mark, and enforcement philosophy.

Intellectual Property · statewide roster

12,342 attorneys on the official State Bar of California roll list intellectual property among their practice areas, with an address of record in 43 of California's 58 counties.

11,968 of them hold an active licence; the remainder are recorded as inactive and are not currently eligible to practise.

The largest county rosters are Los Angeles (3,771), San Francisco (1,809), Santa Clara (1,643), San Diego (1,297) and Orange (1,235).

37 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.

For 986, the registry records a language other than English, almost always from a firm website published in that language; that describes the website, not an attorney's own ability.

Jason A. Rastegar

Intellectual Property · Torrance · Los Angeles County

Bar #355141 · Admitted 2024

Speaks Spanish, Persian, French, Japanese, Tagalog, Vietnamese · Taking new clients (attorney stated)

Identity verified · View the record →

Call(310) 961-9600

Jie Zhang

Intellectual Property · Brossard J4W 1K1 · Foreign County

Bar #353716 · Admitted 2024

Identity verified · View the record →

Husnu Ada

Intellectual Property · Ankara 06400 · Foreign County

Bar #363342 · Admitted 2025

Identity verified · View the record →

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Legal information, not legal advice

Intellectual Property matters in California

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

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 registry's blog

Intellectual Property Attorney in California: The BasicsLearn what California and federal IP law cover, the difference between patent and trademark practice, and where the public record shows who is licensed.

From the answer files

Do I need to register my copyright to sue for infringement?17 U.S.C. § 411; Fourth Estate v. Wall-Street.com (2019) 586 U.S. 296How much does it cost to trademark a name in California?15 U.S.C. § 1051How long does trademark registration take?15 U.S.C. §§ 1051, 1062What should I do if someone took my trade secrets?18 U.S.C. § 1836How long do I have to oppose a trademark application?15 U.S.C. § 1063Who owns the copyright when I pay a freelancer?17 U.S.C. § 201Does registering my business name protect it like a trademark?15 U.S.C. § 1125(a)What does a provisional patent application actually do?35 U.S.C. § 111(b)How do I evaluate an intellectual property attorney?Cal. Bus. & Prof. Code § 6125; State Bar of California

Intellectual Property in all 58 counties

Intellectual Property in Los Angeles CountySeat: Los AngelesIntellectual Property in San Diego CountySeat: San DiegoIntellectual Property in San Francisco CountySeat: San FranciscoIntellectual Property in Alameda CountySeat: OaklandIntellectual Property in Santa Clara CountySeat: San JoseIntellectual Property in Sonoma CountySeat: Santa RosaIntellectual Property in Humboldt CountySeat: EurekaIntellectual Property in Shasta CountySeat: ReddingIntellectual Property in Sacramento CountySeat: SacramentoIntellectual Property in Yolo CountySeat: WoodlandIntellectual Property in Monterey CountySeat: SalinasIntellectual Property in Santa Barbara CountySeat: Santa BarbaraIntellectual Property in Fresno CountySeat: FresnoIntellectual Property in Kern CountySeat: BakersfieldIntellectual Property in El Dorado CountySeat: PlacervilleIntellectual Property in Riverside CountySeat: RiversideIntellectual Property in San Bernardino CountySeat: San BernardinoIntellectual Property in Orange CountySeat: Santa AnaIntellectual Property in San Joaquin CountySeat: StocktonIntellectual Property in Stanislaus CountySeat: ModestoIntellectual Property in Ventura CountySeat: VenturaIntellectual Property in Tulare CountySeat: VisaliaIntellectual Property in San Luis Obispo CountySeat: San Luis ObispoIntellectual Property in Alpine CountySeat: MarkleevilleIntellectual Property in Amador CountySeat: JacksonIntellectual Property in Butte CountySeat: OrovilleIntellectual Property in Calaveras CountySeat: San AndreasIntellectual Property in Colusa CountySeat: ColusaIntellectual Property in Contra Costa CountySeat: MartinezIntellectual Property in Del Norte CountySeat: Crescent CityIntellectual Property in Glenn CountySeat: WillowsIntellectual Property in Imperial CountySeat: El CentroIntellectual Property in Inyo CountySeat: IndependenceIntellectual Property in Kings CountySeat: HanfordIntellectual Property in Lake CountySeat: LakeportIntellectual Property in Lassen CountySeat: SusanvilleIntellectual Property in Madera CountySeat: MaderaIntellectual Property in Marin CountySeat: San RafaelIntellectual Property in Mariposa CountySeat: MariposaIntellectual Property in Mendocino CountySeat: UkiahIntellectual Property in Merced CountySeat: MercedIntellectual Property in Modoc CountySeat: AlturasIntellectual Property in Mono CountySeat: BridgeportIntellectual Property in Napa CountySeat: NapaIntellectual Property in Nevada CountySeat: Nevada CityIntellectual Property in Placer CountySeat: AuburnIntellectual Property in Plumas CountySeat: QuincyIntellectual Property in San Benito CountySeat: HollisterIntellectual Property in San Mateo CountySeat: Redwood CityIntellectual Property in Santa Cruz CountySeat: Santa CruzIntellectual Property in Sierra CountySeat: DownievilleIntellectual Property in Siskiyou CountySeat: YrekaIntellectual Property in Solano CountySeat: FairfieldIntellectual Property in Sutter CountySeat: Yuba CityIntellectual Property in Tehama CountySeat: Red BluffIntellectual Property in Trinity CountySeat: WeavervilleIntellectual Property in Tuolumne CountySeat: SonoraIntellectual Property in Yuba CountySeat: Marysville

Intellectual Property by city

Intellectual Property in Los AngelesLos Angeles County · Los AngelesIntellectual Property in Long BeachLos Angeles County · Los AngelesIntellectual Property in PasadenaLos Angeles County · Los AngelesIntellectual Property in Santa MonicaLos Angeles County · Los AngelesIntellectual Property in San DiegoSan Diego County · San DiegoIntellectual Property in Chula VistaSan Diego County · San DiegoIntellectual Property in San FranciscoSan Francisco County · Bay AreaIntellectual Property in OaklandAlameda County · Bay AreaIntellectual Property in San JoseSanta Clara County · Bay AreaIntellectual Property in Santa RosaSonoma County · North CoastIntellectual Property in EurekaHumboldt County · North CoastIntellectual Property in ReddingShasta County · Shasta CascadeIntellectual Property in SacramentoSacramento County · Sacramento ValleyIntellectual Property in DavisYolo County · Sacramento ValleyIntellectual Property in FolsomSacramento County · Sacramento ValleyIntellectual Property in SalinasMonterey County · Central CoastIntellectual Property in Santa BarbaraSanta Barbara County · Central CoastIntellectual Property in FresnoFresno County · San Joaquin ValleyIntellectual Property in BakersfieldKern County · San Joaquin ValleyIntellectual Property in South Lake TahoeEl Dorado County · SierraIntellectual Property in RiversideRiverside County · Inland EmpireIntellectual Property in San BernardinoSan Bernardino County · Inland EmpireIntellectual Property in IrvineOrange County · Orange CountyIntellectual Property in AnaheimOrange County · Orange CountyIntellectual Property in Santa AnaOrange County · Orange CountyIntellectual Property in Palm SpringsRiverside County · DesertIntellectual Property in StocktonSan Joaquin County · San Joaquin ValleyIntellectual Property in ModestoStanislaus County · San Joaquin ValleyIntellectual Property in OxnardVentura County · Central CoastIntellectual Property in FremontAlameda County · Bay AreaIntellectual Property in VisaliaTulare County · San Joaquin ValleyIntellectual Property in San Luis ObispoSan Luis Obispo County · Central Coast

Adjacent shelves of the law

Business LawCal. Code Civ. Proc. § 337EmploymentCal. Gov. Code § 12960

Full Intellectual Property rosters, by surname

Abbott – Lomazzi · Alameda County217 attorneysLong – Zhang · Alameda County212 attorneysAbate – Zuraw · Contra Costa County201 attorneysAagaard – Basko · Los Angeles County216 attorneysBasol – Burroughs · Los Angeles County216 attorneysBurrows – Coorg · Los Angeles County216 attorneysCoplan – Elihu · Los Angeles County216 attorneysElizabeth – Genga · Los Angeles County218 attorneysGennari – Harris · Los Angeles County222 attorneysHarrison – Jesuele · Los Angeles County215 attorneysJeun – Koyfman · Los Angeles County214 attorneysKozak – Livingston · Los Angeles County216 attorneysLo – Mcgrath · Los Angeles County217 attorneysMchale – Norfleet · Los Angeles County221 attorneysNorgaard – Pope · Los Angeles County211 attorneysPoppensschultz – Russell · Los Angeles County220 attorneysRuttenberg – Silva · Los Angeles County216 attorneysSilver – Tantalo · Los Angeles County216 attorneysTanter – Waters · Los Angeles County217 attorneysWatkins – Zyne · Los Angeles County223 attorneysAdbegovicstarcevich – Zhang · Marin County120 attorneysAbdelaal – Cohen · Orange County211 attorneysCohn – Hale · Orange County197 attorneysHales – Landie · Orange County199 attorneysLandry – Niu · Orange County195 attorneysNovak – Song · Orange County200 attorneysSpearman – Zwick · Orange County201 attorneysAbdallah – Zhou · Sacramento County201 attorneysAbasto – Chopin · San Diego County213 attorneysChryssostomides – Hamilton · San Diego County209 attorneysHammond – Leach · San Diego County208 attorneysLeachman – Olin · San Diego County210 attorneysOliver – Sperling · San Diego County210 attorneysSperow – Zunic · San Diego County208 attorneysAbada – Chan · San Francisco County220 attorneysChang – Fontenette · San Francisco County219 attorneysFord – Hsieh · San Francisco County220 attorneysHsu – Lee · San Francisco County239 attorneysLefstin – Morrow · San Francisco County204 attorneysMoseley – Rice · San Francisco County221 attorneysRich – Tajalle · San Francisco County231 attorneysTakenouchi – Zwang · San Francisco County224 attorneysAbrams – Durousseau · San Mateo County195 attorneysDutt – Lee · San Mateo County199 attorneysLeong – Rost · San Mateo County190 attorneysRothstein – Zweig · San Mateo County194 attorneysAbhyanker – Chen · Santa Clara County224 attorneysCheng – Fligor · Santa Clara County180 attorneysFlores – Hwang · Santa Clara County198 attorneysHyde – Li · Santa Clara County208 attorneysLiang – Nguyen · Santa Clara County192 attorneysNicholson – Ryou · Santa Clara County199 attorneysSadhwani – Ulrich · Santa Clara County198 attorneysUriarte – Zweig · Santa Clara County195 attorneysAbrahams – Zoetewey · Ventura County116 attorneys

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