Donald M. Cislo

Donald M. Cislo, Esq. has practiced intellectual property law in California since 1970, representing a wide range of clients across complex legal matters. With over five decades of experience, he has handled cases involving trademarks, patents, and copyrights, offering strategic counsel and courtroom advocacy to protect his clients’ innovations and rights.

Donald earned a Bachelor of Science from the Illinois Institute of Technology before completing his Juris Doctor at De Paul University Law School in Chicago, Illinois. His educational background provided a strong technical and legal foundation, helping him navigate the evolving field of intellectual property law with precision and insight.

Donald is admitted to the Illinois Bar, California Bar, United States Supreme Court, Court of Appeals for the Federal Circuit, Ninth Circuit Court of Appeals, and the Central District Federal Court. His broad range of court admissions allows him to advocate for clients in both state and federal matters with authority and skill.

Donald has also contributed to the legal community through leadership and service. He served as President of the Marina del Rey Bar Association in 1980 and held trustee positions with both the Los Angeles Board of Trustees (1981–1983) and the Santa Monica Bar Association. He maintains active membership in the American Bar Association and other federal and state legal organizations focused on intellectual property.

Donald M. Cislo continues to be recognized for his longstanding commitment to the field of intellectual property law, guiding individuals and businesses through complex legal landscapes. His decades of practice, combined with deep technical knowledge and court experience, reflect his dedication to delivering strong and effective legal solutions.

Law Office Affiliations

• Senior Partner Emeritus, Cislo & Thomas LLP
• Former President of Marina del Rey Bar Association
• Board of Trustees, Santa Monica Bar Association
• Member, American Bar Association
• Member, United States Supreme Court
• Member, U.S. Court of Appeals for the Federal Circuit
• Member, U.S. Court of Appeals for the Ninth Circuit
• Member, Central District Federal Court

Licensed State

• Illinois
• California

Education

• De Paul University Law School
  Juris Doctor (JD)
• Illinois Institute of Technology
  Bachelor of Science (BS)

Awards & Badges