Kleinfeld, Kaplan & Becker is one of the most distinguished and experienced law firms in the country specializing in FDA law.

Our practice concentrates on the regulation of products subject to the jurisdiction of the U.S.

Food and Drug Administration (FDA) — including food, drugs, biologics, cosmetics, medical devices, dietary supplements, controlled substances, tobacco products, and animal food and drugs — as well as related areas of advertising law. We also advise on regulatory issues affecting similar products (such as meat and poultry regulated by the United States Department of Agriculture (USDA); and consumer products regulated by the Consumer Products Safety Commission (CPSC)).

Our firm has a comprehensive administrative law practice, including the submission of petitions and comments relating to rulemaking and the resolution of administrative actions before the FDA, Federal Trade Commission (FTC), Environmental Protection Agency (EPA), USDA, Drug Enforcement Administration (DEA) and other Federal and state agencies. We conduct litigation, primarily in Federal court, and our attorneys are admitted to practice before a number of Federal courts as well as in the District of Columbia and various States. We also practice before the National Advertising Division (the advertising self-regulatory program of BBB National Programs, Inc.) and engage in alternative dispute resolution and settlement negotiations on behalf of clients.

Our clients consist principally of manufacturers, importers, distributors, and retailers of FDA-regulated products, including major multinational  corporations as well as mid-sized companies and smaller start-up ventures. We also work closely with healthcare institutions, other law firms, private  equity firms, and other specialists in our areas of concentration.

History

Our firm was founded by Vincent A. Kleinfeld, one of the first private practitioners of food and drug law. Mr. Kleinfeld entered government service in 1935 and eventually became Head of the General Regulations Unit, Criminal Division, in the U.S. Department of Justice, where he was in charge of litigation under the Federal Food, Drug, and Cosmetic Act. From 1950-1951, he served as chief counsel for the House Select Committee to Investigate the Use of Chemicals in Food Products (the “Delaney Committee”).

In 1953, Mr. Kleinfeld became a partner in the Washington, DC law firm of Bernstein, Kleinfeld & Alper, where he advised numerous clients in the pharmaceutical, food and cosmetics industries. He was joined by Alan H. Kaplan, who had been a Food Law Institute fellow in 1956-1957 and an attorney in FDA’s Office of the Chief Counsel. In 1967, they created the firm of Kleinfeld & Kaplan. The firm adopted its current name when Robert H. Becker, who was counsel to Norwich Eaton Pharmaceuticals, became a partner in the early 1970s.

1946: Vincent Kleinfeld
1981: Alan Kaplan and Bob Becker
Dick Morey, Tom Henteleff & Bob Becker
2000's: KKB Office
1969: Tom Henteleff
2004: Antony Young, Senate Committee
1982: Alan Kaplan

Accolades

KKB has been consistently recognized as one of the finest law firms in the field; for example, we have been ranked among the Best Law Firms of 2010 – 2024 for FDA Law and Advertising Law by U.S. News & World Report and Best Lawyers®.

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Four KKB Attorneys Author Chapters in 2025 Edition of FDLI’s Top Food and Drug Cases

Kleinfeld, Kaplan, & Becker is proud to announce that four KKB attorneys authored chapters in

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Suzan Onel, Stacy Ehrlich Named 2026 Super Lawyers

We are pleased to announce that KKB partners, Suzan Onel and Stacy Ehrlich, were selected to this year’s

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Allulose and Sugar-Free Claims: The Seventh Circuit’s Reversal in Franco v. Chobani and FDA’s Amicus Intervention

The U.S. Food and Drug Administration rarely appears as amicus curiae in private consumer class

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SNAP Food Restriction Waivers in 2026: What Retailers Should Know

Over the past year, several states have applied and received approval from the United States

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FDA Adopts New Enforcement Discretion Policy for “No Artificial Colors” Claims for Foods Intended for Human Consumption

Today, the Food and Drug Administration (FDA) signaled a significant shift in its policies with

Get in Touch

Washington D.C.

Our office is located a few blocks south of Dupont Circle, near the intersection of 19th Street NW and M Street NW. The closest Metro stations are Dupont Circle or Farragut North on the Red line and Farragut West on the Blue/Orange/ Silver lines. If you are driving, there is a parking garage attached to our building.

1850 M Street NW, Suite 1000 Washington, DC 20036