Best Patent & Trademark Attorneys near Plainfield, IL
None of these firms is based in Plainfield; they work from towns including Chicago (32 mi), Naperville (9 mi) and Glen Ellyn (18 mi).
24 firms listed · 4 open 24/7 · 6 open weekends · 20 rated 4.5+
Data verified October 18, 2026
Mizen Law
Corridor Law Group
Ivy Patent & Trademark Law - Naperville
Garbis Law
- Trademark
- Intellectual Property
- Understanding
Incubate IP
- Start-up
- Expertise
The 24 firms listed for Plainfield, IL handle patent, trademark, copyright and trade secret work for clients. What each says about its technical fields and filing practice comes from its own website; ratings come from public reviews.

Area overview: Plainfield, IL
22 of the 24 firms on this page have a rating, from 4.0 to 5.0 across 363 reviews; 2 have 50 or more reviews and 20 are rated 4.5 or higher. When clients rate these firms on specific qualities, they most often praise professionalism (100%), responsiveness (76%) and quality (67%). 4 are open around the clock; 6 are open on Saturdays and 5 on Sundays. The practice areas the firms on this page list most often on their websites are intellectual property (4), litigation (4), copyrights (3), attorneys (2) and business law (2). 1 has a BBB rating of A or A+. 19 have ten or more years of experience, the longest 100 years. 4 offer urgent consultations. We have a website on file for 23 of the firms on this page; 19 publish a contact page; 17 list a public email and 2 take bookings online. We count these figures across the firms on this page; distances are straight-line, and hours and prices change, so confirm the details with the firm before you book a consultation.
Which patent firms listed for Plainfield list their technical fields online?
Websites are recorded for 23 of the 24 patent firms shown here. Such practices normally name the technologies they cover, from mechanical and software through to chemistry and life sciences. That match is the most useful filter available, because an attorney has to understand the invention before drafting a claim about it.
Edward R Kirby & Associates
Kurtz L Dana
Varboncouer Law
Henry Query
Goytia & Associates - US Office
Indie Law, A Trademark Law Firm
- Knowledge
- Process
- Need
Saper Law Offices
- Results
- Entertainment
- Trademark
The Russell Firm
- Matter
Faier & Faier
- Phone
ABC Patent Services
Drishti Law
- Logo
- Name
Zephyr Law
AU
- IP
Ziliak Law
- Emails
Thorelli & Associates
Addyhart
Spencepc
Much Shelist
- Lawyer
Patent Preparation and Prosecution Legal Services in Plainfield, IL Cost Estimates
Why these companies made our list
What clients say about firms near Plainfield
- “They are very easy to work with, kept me informed and did a great job securing my trademark.” — client of Indie Law, A Trademark Law Firm
- “The attention to detail and expertise gave me confidence that my trademark application was in capable hands.” — client of Drishti Law
- “Highly skilled patent litigators and counselors. They gave me great advice and walked me through every step of the process.” — client of Spencepc
- “The process with Indie Law was so easy and communication throughout the long process of waiting for my trademark to get approved was outstanding.” — client of Indie Law, A Trademark Law Firm
Excerpts from public reviews of the firms listed on this page.