California Patent Law Legal Professionals

Compare verified patents attorney profiles, read client reviews, and request free consultations across California

608 lawyers found

California residents facing patents issues have access to attorneys who specialize in patent prosecution, patent infringement litigation, patent portfolio management, licensing, and prior art searches. The legal framework in California differs from other states in important ways, and the attorneys listed here have experience navigating Superior Court proceedings and the specific regulations that govern patents cases in this jurisdiction.

The statute of limitations for patents matters in California is generally 4 years written, 2 years oral, though specific deadlines vary by case type. Cases proceed through Superior Court, and California's state laws may provide protections or requirements that differ from federal standards. The State Bar of California sets the professional standards for practitioners, and attorneys who focus on patents in California bring jurisdictional expertise that general practitioners often lack.

Choosing the right patents attorney in California means evaluating more than just qualifications — it means finding someone who understands the local legal system and has handled similar cases. Use the profiles on this page to compare attorney experience, read client reviews, check office locations, and identify lawyers who offer free initial consultations. Taking the time to compare options can significantly affect your outcome.

Want to understand your legal rights before contacting an attorney? Read our complete guide to patents law in California for an in-depth look at California's statutes, court procedures, and what outcomes are possible. When you're ready, use the profiles below to compare attorneys and schedule a consultation.

John Karl Buche - Attorney
John Karl Buche
0/5 (0 reviews)
Buche & Associates, P.C.
 875 Prospect St Suite 305 San Diego CA 92037
(858) 459-9111
South Texas College of Law (1996)
English
Bar #239477
California Bar
Active License
Verified
Business Law Intellectual Property Patents
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Jessica Bromall Sparkman - Attorney
Jessica Bromall Sparkman
0/5 (0 reviews)
Jeffer Mangels Butler & Mitchell LLP
 1900 Avenue of the Stars 7th Floor Los Angeles CA 90067
(310) 712-6838
University of Southern California Gould School of Law
English
Bar #235017
9th Circuit Bar
Active License
Verified
Appeals & Appellate Business Law Intellectual Property
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Gerald Ray Prettyman - Attorney
Gerald Ray Prettyman
0/5 (0 reviews)
Law Office of Gerald R. Prettyman
 5890 Stoneridge Dr Ste 102 Pleasanton CA 94588
(925) 600-7342
Golden Gate University (2005)
English
Bar #247887
California Bar
Active License
Verified
Business Law Intellectual Property Patents
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Andrew Kevin Jacobson - Attorney
Andrew Kevin Jacobson
0/5 (0 reviews)
Bay Oak Law
 180 Grand Ave. Suite 700 Oakland CA 94612
(510) 208-5500
Boalt Hall School of Law, University of California, Berkeley
Bar #148583
California Bar
Active License
Verified
Antitrust Law Business Law Communications & Internet Law
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David Jeanchung Tsai - Attorney
David Jeanchung Tsai
0/5 (0 reviews)
Pillsbury Winthrop Shaw Pittman LLP
 Four Embarcadero Center 22nd Floor San Francisco CA 94111-5998
(415) 983-1176
Harvard University
Chinese
California Bar
Active License
Antitrust Law Business Law Intellectual Property
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Michael Edward Dergosits - Attorney
Michael Edward Dergosits
0/5 (0 reviews)
Dergosits & Noah LLP
 One Embarcadero Center Suite 720 San Francisco CA 94111
(415) 705-6381
University of San Francisco School of Law (1981)
English
Bar #118206
California Bar
Active License
Verified
Intellectual Property Patents Trademarks
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Peter Tormey - Attorney
Peter Tormey
0/5 (0 reviews)
 101 Gregory Lane Suite 46 Pleasant Hill CA 94523
(925) 352-9842
John F. Kennedy University (2006)
Bar #269869
Federal Circuit Bar
Inactive License
Verified
Business Law Intellectual Property Patents
View Profile Claim
Joseph Trojan - Attorney
Joseph Trojan
0/5 (0 reviews)
Trojan Law Offices
 9250 Wilshire Blvd Suite 325 Beverly Hills CA 90212
(310) 777-8399
Loyola Law School, Los Angeles
English, Japanese
Bar #137067
U.S. Supreme Court Bar
Active License
Verified
Business Law Intellectual Property Patents
View Profile Claim
Mark Alan Lemley - Attorney
Mark Alan Lemley
0/5 (0 reviews)
Lex Lumina PLLC
 559 Nathan Abbott Way Stanford CA 94305
(650) 723-4605
University of California, Berkeley School of Law
Bar #155830
California Bar
Active License
Verified
Antitrust Law Intellectual Property Patents
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Suzanne Natbony - Attorney
Suzanne Natbony
0/5 (0 reviews)
Aliant LLP
 2491 Purdue Ave., Ste. 221 Los Angeles CA 90064
(310) 478-6251
Southwestern University School of Law (2008)
English
Active License
Arbitration & Mediation Business Law Communications & Internet Law
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Michael Cohen - Attorney
Michael Cohen
0/5 (0 reviews)
Cohen IP Law Group, P.C.
 9025 Wilshire Blvd., Suite 301 Beverly Hills CA 90211
(310) 288-4500
Southwestern University School of Law
English, Japanese
United States District Court for the Central, Southern & Northern Districts of California Bar
Unknown Status
Business Law Communications & Internet Law Entertainment & Sports Law
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Lizbeth L. Hasse - Attorney
Lizbeth L. Hasse
0/5 (0 reviews)
Creative Industry Law Group
 155 Sansome St Ste 500 San Francisco CA 94104
(415) 433-4380
Univeristy of California, Berkeley, Boalt Hall School of Law
Bar #104517
California Bar
Active License
Verified
Antitrust Law Arbitration & Mediation Business Law
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Frank B. Yang - Attorney
Frank B. Yang
0/5 (0 reviews)
Fenwick & West LLP
 801 California St. Mountain View CA 94041
(650) 335-7143
New York University School of Law (2009)
California Bar
Unknown Status
Intellectual Property Patents
View Profile Claim
David Bennett - Attorney
David Bennett
0/5 (0 reviews)
Verhagen Bennett LLP
 100 Wilshire Blvd, STE 700 Santa Monica CA 90401
(310) 917-1064
Pepperdine University School of Law
California Bar
Unknown Status
Business Law Cannabis & Marijuana Law Patents
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Enia Titova - Attorney
Enia Titova
0/5 (0 reviews)
Fenwick & West LLP
 801 California St. Mountain View CA 94041
(650) 335-7858
New York University School of Law (2010)
California Bar
Unknown Status
Business Law Patents
View Profile Claim
Howard Leslie Hoffenberg - Attorney
Howard Leslie Hoffenberg
0/5 (0 reviews)
IP and Business Law Offices of Howard L. Hoffenberg, Esq.
 74-7110 Hiqhway 111 Suite 102 Palm Desert CA 92260
DeVry University-Chicago (1982)
Bar #129206
California Bar
Active License
Verified
Business Law Intellectual Property Patents
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Jonathan Noel Osder - Attorney
Jonathan Noel Osder
0/5 (0 reviews)
Donahue Fitzgerald LLP
 1999 Harrison St 26th floor Oakland CA 94612
(510) 451-3300
University of San Francisco School of Law
Bar #169538
California Bar
Active License
Verified
Intellectual Property Patents
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Andrew Whitehead - Attorney
Andrew Whitehead
0/5 (0 reviews)
Fenwick & West LLP
 801 California St. Mountain View CA 94041
(650) 335-7160
The George Washington University Law School (2009)
United States Patent and Trademark Office Bar
Unknown Status
Intellectual Property Patents
View Profile Claim
Ronnie Solomon - Attorney
Ronnie Solomon
0/5 (0 reviews)
Fenwick & West LLP
 801 California St. Mountain View CA 94041
(650) 335-7295
University of Miami School of Law (2012)
California Bar
Unknown Status
Intellectual Property Patents Trademarks
View Profile Claim
John Riley Ross - Attorney
John Riley Ross
0/5 (0 reviews)
Ross Patent Law Office
 PO BOX 2138 DEL MAR CA 92014
(760) 744-1843
Thomas Jefferson School of Law
Bar #64768
California Bar
Active License
Verified
Intellectual Property Patents
View Profile Claim
Jubin Dana - Attorney
Jubin Dana
0/5 (0 reviews)
Dana Legal Services
 325 Sharon Park Dr 217 Menlo Park CA 94025
(650) 334-1446
Oklahoma City University School of Law (1996)
English, Farsi
Bar #235695
California Bar
Active License
Verified
Intellectual Property Patents Trademarks
View Profile Claim
Curtis Lamar Harrington - Attorney
Curtis Lamar Harrington
0/5 (0 reviews)
Harrington & Harrington — PATENTAX
 2371 Grand Avenue No. 91719 Long Beach CA 90809-1719
(562) 594-9784
Auburn University
Japanese, Russian
California Bar
Active License
Intellectual Property Patents Tax Law
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Mr. Stuart James West P.E. - Attorney
Mr. Stuart James West P.E.
0/5 (0 reviews)
West & Associates, A Professional Corporation
 2815 Mitchell Drive Suite 209 Walnut Creek CA 94598
(925) 262-2220
University of North Dakota (2006)
Arabic, French, German
Bar #202041
Solicitor, England & Wales Bar
Active License
Verified
Intellectual Property Patents
View Profile Claim
Howard Leslie Hoffenberg - Attorney
Howard Leslie Hoffenberg
0/5 (0 reviews)
IP and Business Law Offices of Howard L. Hoffenberg, Esq.
 74-710 Highway 111 Suite 102 Palm Desert CA 92260
(760) 347-3470
Univ of Illinois
Bar #129206
Illinois Bar
Active License
Verified
Business Law Intellectual Property Patents
View Profile Claim
Robert Duane Rowlett - Attorney
Robert Duane Rowlett
0/5 (0 reviews)
Rowlett Law Firm
 26933 Camino De Estrella 2nd Floor Dana Point CA 92624
(949) 481-3000
Univ of California Santa Barbara
English
Bar #176611
U.S. Patent Office Bar
Active License
Verified
Arbitration & Mediation Business Law Employment Law
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John E. Russell - Attorney
John E. Russell
0/5 (0 reviews)
Allmark Trademark
 101 Parkshore Dr Ste 100 Folsom CA 95630
Santa Clara University School of Law
Bar #175899
California Bar
Active License
Verified
Business Law Intellectual Property Patents
View Profile Claim
Rebecca A E Fewkes - Attorney
Rebecca A E Fewkes
0/5 (0 reviews)
Fenwick & West LLP
 801 California St Mountain View CA 94041
(650) 988-8500
University of California College of the Law, San Francisco (2000)
Bar #209168
U.S. District Court, Central District of California Bar
Active License
Verified
Intellectual Property Patents
View Profile Claim
William Nelson - Attorney
William Nelson
0/5 (0 reviews)
Sierra IP Law, PC
 US Bancorp Tower 111 SW Fifth Avenue, Suite 3150 Portland OR 97204
(650) 398-1644
San Joaquin College of Law (2007)
California Bar
Unknown Status
Business Law Intellectual Property Patents
View Profile Claim
Gene Hong Yee - Attorney
Gene Hong Yee
0/5 (0 reviews)
 1000 Alfred Nobel Dr Hercules CA 94547
(510) 741-6345
University of California College of the Law, San Francisco (2002)
U.S. Patent and Trademark Office Bar
Active License
Intellectual Property Patents
View Profile Claim
Natu J Patel - Attorney
Natu J Patel
0/5 (0 reviews)
Patel Law Firm PC
 22952 Mill Creek Dr Laguna Hills CA 92653
(949) 955-1077
Southwestern University School of Law
Bar #188618
California Bar
Active License
Verified
Intellectual Property Patents
View Profile Claim
Michael David Fabiano - Attorney
Michael David Fabiano
0/5 (0 reviews)
Fabiano Law Firm, P.C.
 2173 Salk Avenue, Suite 250 Carlsbad CA 92008
(619) 742-9631
University of California College of the Law, San Francisco (1990)
Bar #167058
9th Circuit Bar
Active License
Verified
Business Law Intellectual Property Patents
View Profile Claim
Sarah G. Hartman - Attorney
Sarah G. Hartman
0/5 (0 reviews)
Jeffer Mangels Butler & Mitchell LLP
 3 Park Plaza #1100 Irvine CA 92614
(949) 623-7243
Vanderbilt University Law School (2011)
English
U.S. District Courts, Central, Northern, and Southern Districts of California Bar
Unknown Status
Appeals & Appellate Business Law Entertainment & Sports Law
View Profile Claim
Yixin Zhang - Attorney
Yixin Zhang
0/5 (0 reviews)
Fenwick & West LLP
 801 California St. Mountain View CA 94041
(650) 335-7866
Santa Clara University School of Law (2010)
United States Patent and Trademark Office Bar
Unknown Status
Intellectual Property Patents
View Profile Claim
Allan Howard Grant - Attorney
Allan Howard Grant
0/5 (0 reviews)
Allan Howard Grant Law Firm
 7545 Irvine Center Dr. # 200 Irvine CA 92618
(949) 296-9881
California Western School of Law (1997)
English
United States Patent & Trademark Office (USPTO) Bar
Active License
Business Law Intellectual Property International Law
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Jason Randall Book - Attorney
Jason Randall Book
0/5 (0 reviews)
Book & Book
 PO BOX 3885 SANTA CRUZ CA 95063
(831) 427-5132
Santa Clara University School of Law
Bar #181991
California Bar
Active License
Verified
Business Law Estate Planning Intellectual Property
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Richard Alan Ryan - Attorney
Richard Alan Ryan
0/5 (0 reviews)
Richard A. Ryan, Attorney at Law
 401 W. Fallbrook Avenue, Suite 101 Fresno CA 93711
(559) 447-1837
Arizona State University (1988)
Bar #154955
California Bar
Active License
Verified
Intellectual Property Patents Trademarks
View Profile Claim
Andrew Ellis Monach - Attorney
Andrew Ellis Monach
0/5 (0 reviews)
Monach & Associates LLP
 112 Pala Ave Piedmont CA 94611
(415) 268-7588
Yale Law School (1979)
Bar #87891
California Bar
Inactive License
Verified
Arbitration & Mediation Business Law Consumer Law
View Profile Claim
Quynh Chen - Attorney
Quynh Chen
0/5 (0 reviews)
Q. Chen Law
 5940 Newpark Mall Road Newark CA 94560
(510) 764-8880
Golden Gate University (2013)
Cantonese, Chinese, English
9th Circuit Bar
Unknown Status
Business Law Family Law Patents
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Gordon E Gray III - Attorney
Gordon E Gray III
0/5 (0 reviews)
Gray Law Firm
 4401 Atlantic Ave Long Beach CA 90807
(562) 984-2020
Loyola University Chicago School of Law (1994)
Bar #175209
California Bar
Active License
Verified
Intellectual Property Patents Trademarks
View Profile Claim
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