Atty. Steven Peter Petersen
Steven Peter Petersen is a lawyer practicing litigation, patents, electrical, computer and software technologies and 2 other areas of law. Steven received a B.S.E.E. degree from Northwestern University in 1984, and has been licensed for 39 years.
Electrical, Computer and Software Technologies & More Attorney · Serving Chicago, IL · 39+ Years Experience
Profile Summary
About Steven Peter Petersen at a Glance
Steven Peter Petersen is a Member based in Chicago, Illinois, practicing at Leydig, Voit & Mayer, Ltd.. They have 39+ years of legal experience, licensed to practice since 1987. Their practice focuses on patent, business, ip, and litigation. Admitted to practice in Illinois U.S. Supreme Court U.S. Court of Appeals, Federal Circuit U.S. District Court, Eastern Dist (1987). Educated at University of Michigan (J.D., 1987) and Northwestern University (B.S.E.E., 1984). Recognitions include AV Preeminent. Serves clients in Chicago, IL and the surrounding metropolitan area.
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About Steven Peter Petersen
- Steven Peter Petersen is a lawyer practicing litigation, patents, electrical, computer and software technologies and 2 other areas of law
- Steven received a B.S.E.E. degree from Northwestern University in 1984, and has been licensed for 39 years
- Steven practices at Leydig, Voit & Mayer, Ltd. in Chicago, IL
Practice Areas Explained
Steven Peter Petersen's Areas of Legal Practice
Each practice area below reflects the types of cases Steven Peter Petersen handles, with a practical overview of what that area of law involves and how it may apply to your situation in Chicago.
Patent Law in Chicago
Steven Peter Petersen is one of 20,632 patent attorneys indexed nationally. Browse patent attorneys in Illinois →
Business & Corporate Law in Chicago
Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.
Steven Peter Petersen is one of 497,491 business attorneys indexed nationally. Browse business attorneys in Illinois →
Intellectual Property in Chicago
IP attorneys protect inventions, brands, and creative work through patent prosecution, trademark registration, copyright, and trade-secret enforcement.
Steven Peter Petersen is one of 105,285 ip attorneys indexed nationally. Browse ip attorneys in Illinois →
Civil Litigation in Chicago
Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.
Steven Peter Petersen is one of 450,750 litigation attorneys indexed nationally. Browse litigation attorneys in Illinois →
Jurisdictional Context
Why Local Counsel Matters in Chicago
Practicing law in Illinois. Legal matters in Illinois are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Chicago are typically filed in the local municipal court or the appropriate Illinois state district court, depending on subject matter and amount in controversy. An attorney licensed in Illinois 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 Illinois courts without local counsel or pro hac vice admission.
Chicago Courts and Legal Process
Choosing a Chicago-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 Illinois attorneys? Browse all attorneys in Chicago or all attorneys in Illinois.
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Professional Profile
Why Clients in Chicago Choose Steven Peter Petersen
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 Steven Peter Petersen's practice in the field of patent, business, ip, and litigation.
Decade-Tested Legal Experience
Steven Peter Petersen brings 39+ years of hands-on legal practice — enough to have navigated the recurring fact patterns, procedural traps, and negotiation dynamics that shape case outcomes.
Broad Practice Area Coverage
Covering patent, business, and ip, Steven Peter Petersen can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.
Local Presence in Chicago
A Chicago-based practice means Steven Peter Petersen 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 Steven Peter Petersen Handles in Chicago
Below is a representative sample of the types of matters Steven Peter Petersen has experience with under Illinois 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 Steven Peter Petersen directly to discuss the specifics of your situation.
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How People Find Steven Peter Petersen Online
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Steven Peter Petersen's Practice Areas & Specializations
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