Atty. Donald Cayen

Atty. Donald Cayen

Donald Cayen is a lawyer practicing intellectual property law. Donald received a B.S.M.E. degree from Marquette University in 1960, and has been licensed for 43 years.

Fond du Lac Fond du Lac 43 yrs experience 43 year
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Profile Summary

About Donald Cayen at a glance

Donald Cayen is an Of Counsel based in Fond du Lac, Wisconsin. They have 43+ years of legal experience, licensed to practice since 1983. Their practice focuses on real estate and ip. Admitted to practice in Wisconsin registered to practice before U.S. Patent and Trademark Office (1983) and U.S. District Court, Eastern and Western Districts of Wisconsin (1983). Educated at Marquette University (J.D., 1983) and Marquette University (B.S.M.E. University, 1960). Recognitions include BV Distinguished. Active member of Fond du Lac County Bar Association State Bar of Wisconsin Wisconsin Intellectual Property Law Association National Lawyer's Association. Serands clients in Fond du Lac, WI and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Donald Cayen is a lawyer practicing intellectual property law
  • Donald received a B.S.M.E. degree from Marquette University in 1960, and has been licensed for 43 years
  • Donald practices in Fond du Lac, WI

Practice Areas Explained

Donald Cayen's Areas of Practice

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

Real Estate Law

Real estate attorneys handle home purchases, sales, commercial transactions, title disputes, and landlord-tenant matters.

Donald Cayen is one of 316,149 real estate attorneys indexed nationally. Browse real estate attorneys in Wisconsin →

Intellectual Property

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

Donald Cayen is one of 106,079 ip attorneys indexed nationally. Browse ip attorneys in Wisconsin →

Jurisdictional Context

Why local counsel matters in Wisconsin

Practicing law in Wisconsin. Legal matters in Wisconsin are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Fond du Lac are typically filed in the local municipal court or the appropriate Wisconsin state district court, depending on subject matter and amount in controversy. An attorney licensed in Wisconsin 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 Wisconsin courts without local counsel or pro hac vice admission.

Looking for additional Wisconsin attorneys? Browse all attorneys in Fond du Lac or all attorneys in Wisconsin.

Frequently Asked

Common questions about Donald Cayen

Where is Donald Cayen's law office located?
Donald Cayen's law practice is located in Fond du Lac, Wisconsin. You can contact the office directly through this profile page.
What practice areas does Donald Cayen handle?
Donald Cayen focuses on real estate, ip. Each practice area listed reflects experience handling cases of that type in Wisconsin.
How long has Donald Cayen practiced law?
Donald Cayen has 43+ years of legal experience and has been licensed since 1983.
Where did Donald Cayen go to law school?
Donald Cayen earned their education at (J.D., 1983); (B.S.M.E. University, 1960).
How can I contact Donald Cayen for a consultation?
You can contact Donald Cayen 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.
What awards or recognition has Donald Cayen received?
Donald Cayen's notable recognition includes: BV Distinguished.

Practice Areas

Education

J.D.
Marquette University
- 1983
B.S.M.E. University
Marquette University
- 1960

Awards

BV Distinguished

Bar Admissions

Wisconsin registered to practice before U.S. Patent and Trademark Office
Admitted: 1983
U.S. District Court, Eastern and Western Districts of Wisconsin
Admitted: 1983

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