James L. Korenchan


James L. Korenchan has more than a decade of experience supporting clients in all phases of U.S. and foreign patent prosecution. He prosecutes patent applications for Fortune 500 companies across industries, including electrical engineering, computer hardware and software, media technology, and aerospace. His experience spans a wide range of technologies, including:

  • Internet of things devices and home automation
  • Mobile apps and operating systems
  • Cloud computing
  • Software as a service (SaaS) and platform as a service (PaaS)
  • Media production and distribution
  • Telecommunications
  • Consumer electronics, such as wearable computing devices
  • Digital map and vehicle navigation
  • Robotic control
  • Speech recognition
  • Avionics
  • Renewable energy computing
  • Kinematic robotic designs
  • Advanced ignition systems
  • Automotive diagnostics
  • Automotive design
  • Antenna design

Clients seek Mr. Korenchan’s counsel and support on due diligence, validity, infringement, and enforceability issues, as well as inter partes review proceedings. He also guides clients on trademark strategy. Additionally, Mr. Korenchan supports intellectual property litigation efforts by conducting detailed infringement investigations.

Mr. Korenchan joined MBHB in 2012 as a technical advisor/patent agent and attended law school while maintaining his full-time position at the firm. Prior to joining MBHB, Mr. Korenchan worked as an associate engineer at an automotive company in the Chicago area.

Outside of work, Mr. Korenchan is an avid film lover who has written several screenplays, an improvisational comedian, and a former Eagle Scout. He is also working to become fluent in Japanese. Additionally, he has participated in the Habitat for Humanity Work Tour and Relay for Life (an American Cancer Society benefit).

  • J.D., Chicago-Kent College of Law,

    Cum Laude

  • B.S., University of Illinois at Urbana-Champaign,

    Electrical Engineering

Bar Admissions
  • U.S. Patent & Trademark Office
  • Illinois
  • PTAB Bar Association
  • Bohemian Lawyers Association of Chicago


  • Prepared and prosecuted U.S. and foreign patent applications related to robotics, automotive technologies and more for a Fortune 100 technology company.
  • Prepared and prosecuted patent applications for large cellular wireless communications corporation, including those directed to 3G and LTE technologies.
  • Evaluated hundreds of patents to support cloud computing company’s patent acquisition and IP portfolio growth efforts.
  • Supported a media technology company during its acquisition of a patent portfolio by evaluating patents for validity and commercial value.
  • Performed detailed infringement investigations in support of a media technology company’s intellectual property litigation efforts. These investigations involved thorough evaluations of the company’s patent portfolio and a competitor’s technologies.

Published Articles

Comparing eligibility in the US and Japan,” World IP Review, November 29, 2019.

User Interfaces: Navigating the Patent Eligibility Landscape,” Legaltech News, Law.com, August 2, 2018.

3 Interesting Facts about the Patent Landscape for Cryptocurrency and Blockchain,” Legaltech News, Law.com, May 10, 2018.

Pre-AIA And Post-AIA Issues Presented By The On-Sale Bar,” Law360.com, August 11, 2016.

Patent Docs

The following publications include links to the Patent Docs weblog, a site focusing on patent law news.

Personalized Media Communications, LLC v. Apple, Inc. (E.D. Tex. 2021) (February 3, 2021)

Barbaro Technologies, LLC v. Niantic, Inc. (N.D. Cal. 2020) (May 28, 2020)

Pebble Tide LLC v. Arlo Technologies, Inc. (D. Del. 2020) (February 13, 2020)

Ubisoft Entertainment, S.A. v. Yousician Oy (E.D.N.C.) (August 16, 2019)

Claims for Monitoring and Analyzing Suspicious Network Activity Found Patent Eligible (March 27, 2019).

Claims for Dynamically Rating Internet Content Deemed Patent-Ineligible (March 18, 2019).

PTAB Affirms Patent Eligibility of Claims for Playing Dice Game (January 23, 2019).

Claims for Determining an Orientation of a 3D Pointing Device Using Sensor Data Found to be Patent-Eligible (November 13, 2018).

PTAB Affirms Patent Eligibility of Claims for Using Dwell Time to Rank Search Results (October 16, 2018).

Claims for Keyword-Based Navigation of Hierarchically-Structured Data Found Abstract But Survive Motion to Dismiss (September 26, 2018).

Claims for Scheduling Packet Data Communication Survives Patent Eligibility Challenge in Motion to Dismiss (September 11, 2018).

Claims for Displaying Message Timing Data Found Patent Ineligible (August 29, 2018).

A Look at Recent PTAB Appeal Decisions Related to Graphical User Interface Claims (August 1, 2018).

Cloud Computing Claims Deemed Patent-Ineligible (July 1, 2018).

Claims for Managing and Delivering Targeted Advertising Data Found Invalid under Covered Business Method (CBM) Patent Review (June 19, 2018).

PTAB Affirms Patent Eligibility of Claims for Training a Spoken Language Understanding Classifier (May 24, 2018).

USPTO Director Addresses U.S. Patent System’s Decline in U.S. Chamber of Commerce Worldwide Patent Protection Rankings (May 10, 2018).

Claims for Refreshing Phone Display Found Patent Eligible (April 18, 2018).

PTAB Affirms Patent Eligibility of Virtual Reality Advertising Claims (April 4, 2018).

Virtual Reality Patents Survive Patent-Eligibility Challenge (March 27, 2018).

District Court Throws Out Haptic Feedback Claims on Grounds of Patent Ineligible Subject Matter (March 18, 2018).

Claims Directed to Attenuating Driveline Vibrations Fall Victim to Law of Nature Challenge (March 4, 2018).

General Plastic Industrial Co. v. Canon Kabushiki Kaisha (September 11, 2017).