Atty. Cydney Sharon Posner

Atty. Cydney Sharon Posner

Cydney Sharon Posner is a lawyer practicing business law, intellectual property. Cydney received a A.B. degree from University of California at Berkeley in 1972, and has been licensed for 44 years.

Palo Alto Palo Alto 44 yrs experience 44 year
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Profile Summary

About Cydney Sharon Posner at a glance

Cydney Sharon Posner is a Special Counsel based in Palo Alto, California, practicing at Cooley LLP. They have 44+ years of legal experience, licensed to practice since 1982. Their practice focuses on business and ip. Admitted to practice in California (1982). Educated at Hastings College of the Law, University of California (J.D., 1982) and University of California at Berkeley (A.B., 1972). Serands clients in Palo Alto, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Cydney Sharon Posner is a lawyer practicing business law, intellectual property
  • Cydney received a A.B. degree from University of California at Berkeley in 1972, and has been licensed for 44 years
  • Cydney practices at Cooley LLP in Palo Alto, CA

Practice Areas Explained

Cydney Sharon Posner's Areas of Practice

Each practice area below reflects the types of cases Cydney Sharon Posner handles, with a brief overview of what that area of law covers.

Business & Corporate Law

Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.

Cydney Sharon Posner is one of 501,317 business attorneys indexed nationally. Browse business attorneys in California →

Intellectual Property

IP attorneys protect inventions, brands, and creative work through patent prosecution, trademark registration, copyright, and trade-secret enforcement.

Cydney Sharon Posner is one of 106,079 ip attorneys indexed nationally. Browse ip attorneys in California →

Jurisdictional Context

Why local counsel matters in California

Practicing law in California. Legal matters in California are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Palo Alto are typically filed in the local municipal court or the appropriate California state district court, depending on subject matter and amount in controversy. An attorney licensed in California brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in California courts without local counsel or pro hac vice admission.

Looking for additional California attorneys? Browse all attorneys in Palo Alto or all attorneys in California.

Frequently Asked

Common questions about Cydney Sharon Posner

Where is Cydney Sharon Posner's law office located?
Cydney Sharon Posner's law practice is located in Palo Alto, California. The firm is Cooley LLP. You can contact the office directly through this profile page.
What practice areas does Cydney Sharon Posner handle?
Cydney Sharon Posner focuses on business, ip. Each practice area listed reflects experience handling cases of that type in California.
How long has Cydney Sharon Posner practiced law?
Cydney Sharon Posner has 44+ years of legal experience and has been licensed since 1982.
Where did Cydney Sharon Posner go to law school?
Cydney Sharon Posner earned their education at (J.D., 1982); (A.B., 1972).
How can I contact Cydney Sharon Posner for a consultation?
You can contact Cydney Sharon Posner directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.

Education

J.D.
Hastings College of the Law, University of California
- 1982
A.B.
University of California at Berkeley
- 1972

Bar Admissions

California
Admitted: 1982

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