Atty. John Robert Duncan
John Robert Duncan is a lawyer practicing patent law, trademark law, intellectual property law. John received a B.S. degree from South Dakota School of Mines and Technology in 1956, and has been licensed for 62 years.
Intellectual Property Law & More Attorney · Serving San Diego, CA · 62+ Years Experience
Profile Summary
About John Robert Duncan at a Glance
John Robert Duncan is a trademark, real estate, and ip attorney based in San Diego, California. They have 62+ years of legal experience, licensed to practice since 1964. Admitted to practice in Virginia (1964), New York (1965), California (1969), and U.S. Supreme Court (1972). Educated at George Washington University (J.D., 1964) and South Dakota School of Mines and Technology (B.S. Chem.E., 1956). Active member of State Bar of California American patent Law Association San Diego Patent Law Association. Serves clients in San Diego, CA and the surrounding metropolitan area.
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About John Robert Duncan
- John Robert Duncan is a lawyer practicing patent law, trademark law, intellectual property law
- John received a B.S. degree from South Dakota School of Mines and Technology in 1956, and has been licensed for 62 years
- John practices in San Diego, CA
Practice Areas Explained
John Robert Duncan's Areas of Legal Practice
Each practice area below reflects the types of cases John Robert Duncan handles, with a practical overview of what that area of law involves and how it may apply to your situation in San Diego.
Trademark Law in San Diego
John Robert Duncan is one of 23,086 trademark attorneys indexed nationally. Browse trademark attorneys in California →
Real Estate Law in San Diego
Real estate attorneys handle home purchases, sales, commercial transactions, title disputes, and landlord-tenant matters.
John Robert Duncan is one of 313,729 real estate attorneys indexed nationally. Browse real estate attorneys in California →
Intellectual Property in San Diego
IP attorneys protect inventions, brands, and creative work through patent prosecution, trademark registration, copyright, and trade-secret enforcement.
John Robert Duncan is one of 105,285 ip attorneys indexed nationally. Browse ip attorneys in California →
Jurisdictional Context
Why Local Counsel Matters in San Diego
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 San Diego 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 venue, 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.
San Diego Courts and Legal Process
Choosing a San Diego-based attorney means your counsel already knows the local docketing timelines, preferred filing formats, and how individual judges typically rule on procedural motions — details that only come from practicing in this jurisdiction day after day. That local familiarity can translate to better strategy, faster filings, and fewer costly surprises.
Looking for additional California attorneys? Browse all attorneys in San Diego or all attorneys in California.
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Professional Profile
Why Clients in San Diego Choose John Robert Duncan
Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish John Robert Duncan's practice in the field of trademark, real estate, and ip.
Decade-Tested Legal Experience
John Robert Duncan brings 62+ years of hands-on legal practice — enough to have navigated the recurring fact patterns, procedural traps, and negotiation dynamics that shape case outcomes.
Multi-State Bar Admission
Licensed in Virginia, New York, and California, John Robert Duncan can represent clients in cases that span state lines or require counsel in multiple jurisdictions.
Broad Practice Area Coverage
Covering trademark, real estate, and ip, John Robert Duncan can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.
Local Presence in San Diego
A San Diego-based practice means John Robert Duncan attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.
Case Types
Common Legal Issues John Robert Duncan Handles in San Diego
Below is a representative sample of the types of matters John Robert Duncan has experience with under California law. If your situation involves one of these case categories, this attorney may be well positioned to help you understand your options.
This list is illustrative, not exhaustive. Contact John Robert Duncan directly to discuss the specifics of your situation.
Search Reference
How People Find John Robert Duncan Online
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John Robert Duncan's Practice Areas & Specializations
Education & Law School Background
Bar Admissions & Licensed Jurisdictions
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