Kleinberg Lerner

What Kleinberg Lerner does

Kleinberg & Lerner, LLP is a Los Angeles-based intellectual property law firm founded in 1985 that provides prosecution, litigation, and counseling services across patents, trademarks, copyrights, international IP, and related matters. The firm operates as a California limited liability partnership with 4 named partners and 11–50 total employees, all working from a single headquarters at 1875 Century Park East. Its client base spans global corporations, partnerships, entrepreneurs, startups, inventors, designers, and authors, with named engagements including Skechers, ETS Express, and entertainment/multimedia clients. The firm has registered 600+ patents and 10,000+ trademarks for clients domestically and abroad.

The firm's core differentiator is the integration of prosecution and litigation expertise under one roof: most attorneys are registered patent attorneys with the USPTO, several hold technical or scientific degrees (electrical engineering, mechanical engineering, physics, biochemistry, molecular and cell biology), and some have prior experience as USPTO examiners or in-house counsel at global corporations. The firm claims over 100 years of combined USPTO patent prosecution experience and a parallel 100+ years of combined trademark prosecution experience. International coverage is delivered through referral relationships with foreign attorneys rather than overseas offices, enabling PCT and Madrid Protocol filings worldwide.

Revenue is generated through hourly billing and fixed fees for professional legal services across four practice areas: IP prosecution, IP litigation, licensing and transactions, and other IP-related matters (domain name disputes, unfair competition, NDAs). The firm does not publicly disclose pricing. Customer acquisition relies on reputation, referrals, academic thought leadership (Harvard, UCLA, USC), and sustained participation in the L.A. startup ecosystem (Tech Coast Angels, L.A. Tech Week) rather than paid marketing channels. The firm has no external investors, no parent company, and no disclosed funding rounds.

Name

Kleinberg Lerner

Legal name

Kleinberg & Lerner, LLP

Website

https://kleinberglerner.com

Company type

Private

Founded year

1985

Operating status

Operating

Headcount range

11–50 employees

Short description

Kleinberg & Lerner, LLP is a Los Angeles intellectual property law firm founded in 1985 that provides patent, trademark, copyright, and IP litigation services to global corporations, startups, entrepreneurs, and inventors through a four-partner boutique practice.

Ownership category

akta.pro rank

Product category

Intellectual Property Law

NAICS

Offices of Lawyers (541110)

SIC

Services-Legal Services (8111)

akta.pro primary industry

Patent Prosecution & Portfolio Management (BPAHAMAA)

akta.pro secondary industries

Trademark Prosecution & Brand Protection (BPAHAMAB), Copyright Services & Content Protection (BPAHAMAC)

Keywords

• Intellectual property law
• Patent prosecution
• Trademark registration
• Ip litigation
• Copyright law

Headquarters

HQ city

Los Angeles

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Marketing or Sales, Technology or R&D

Revenue model

1. Legal Services - IP Prosecution: Hourly billing or fixed fees for intellectual property prosecution services including patent applications, trademark registrations, and copyright filings before the USPTO and international offices.
2. Legal Services - IP Litigation: Hourly billing for complex patent, trademark, and copyright litigation in federal and state courts, including jury trials and appeals.
3. Legal Services - Licensing and Transactions: Fees for preparing and negotiating IP licensing agreements, IP transfers, and IP-related contracts including entertainment industry matters.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels7 records

Core offering

Kleinberg & Lerner, LLP is an intellectual property law firm providing prosecution, litigation, and counseling services for patents, trademarks, copyrights, and international IP matters. The firm registers patents and trademarks before the USPTO and international offices, litigates IP disputes in federal and state courts, and counsels clients on offensive and defensive IP strategy. It serves global corporations, partnerships, entrepreneurs, startups, inventors, designers, and authors.

Product overview

Kleinberg & Lerner, LLP is an intellectual property law firm providing a unified suite of legal services centered on IP prosecution, litigation, and counseling. The core offerings include Patents, Trademarks, Copyrights, IP Litigation, International IP Law, and Other Matters (domain name disputes, unfair competition, and business counseling). These practice areas function as an integrated intellectual property practice where attorneys combine prosecution and litigation expertise to serve clients across all IP protection needs.

Differentiator

Problem solved

Functional benefit

Products and services

• Patents

Quantifiable outcome

• 600+ patents successfully registered domestically and worldwide
• +2 more outcomes

Named customers5 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Three partnerships are on record, tiered core and minor.

• Tech Coast AngelscoreGTM or Marketing Partner · 1 January 2005Kleinberg & Lerner has been affiliated with Tech Coast Angels since 2005, providing IP services to entrepreneurs from startup through being publicly listed on the NYSE. Tech Coast Angels is one of the largest and most active angel investment organizations in the US with over 300 members in five regional networks. Marshall Lerner made presentations on IP strategies to Tech Coast Angels at UCLA Anderson School of Management meetings. The firm participates in face-to-face meetings and counseling with startups during Tech Coast Angels events.
• UCLA Anderson School of Management - Global Access Program (GAP)coreStrategic or Co-development Partner · 1 January 2005Marshall Lerner has participated as a judge in the UCLA GAP Anderson program since 2005. The Global Access Program sends teams of talented MBA professionals around the world to work with select technology companies to develop strategic business plans for US market entry. Each team presents before a three-judge panel where Lerner evaluates presentations. The program has developed strategic business plans for over 500 companies.
• USC Marshall School of Business - Greif Center for Entrepreneurial StudiesminorStrategic or Co-development Partner · 1 January 1998Marshall Lerner has been a member of the Advisory Council of the Marshall School of Business Greif Center for Entrepreneurial Studies since 1998. He delivered a lecture on IP issues for entrepreneurs at the center and received the Advisory Council Member of the Year Award in 2000.

Scale indicators5 records

Recent moves7 records

Expansion highlights3 records

Market position

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/pages/Kleinberg-Lerner-LLP/226335770857120
• LinkedInlinkedin.com/company/kleinberg-&-lerner-llp

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Kleinberg Lerner