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Loren K. Thompson


Phone: (312) 427-1300 | Fax: (312) 427-6663

Dr. Loren K. Thompson is a patent attorney in the Chicago office of Ladas & Parry.

Loren’s legal expertise includes representing both domestic and foreign clients in the areas of patent preparation and prosecution; patentability, and validity opinions.  He has drafted well over 300 international and domestic patent applications starting from inventor disclosures.  His technical expertise covers a broad mix which include semiconductor fabrication, analog and digital circuitry, business management and application software, medical devices, telecommunications, pharmaceuticals, biotechnology, chemicals, nanotechnologies, and even cloning methods.

Loren’s dissertation research interest was to develop economic solar cells from the semiconductor materials, such as, GaAs, TiO2, ZnO, CdS, CdSe, Si, MoX2, and WX2 (X=S, Se, Te). At Ohio State, he studied oxidative processes experienced at photo anode/electrolyte interfaces and developed multi-dimensional minimization software techniques to extract energetic information (e.g., Egap, and Eflatband) and corrosion process information occurring at these interfaces via complex plane impedance analysis and Auger spectroscopy.

Loren’s other non-law interests have been to apply his analytical skills to pharmaceutical, environmental, radioactive, and chemical warfare analysis. He has been a research fellow at the Energy Research Institute in Vancouver, Canada, as well as, a staff fellow at the Addiction Research Center (ARC) in Baltimore, MD for the National Institute of Drug Abuse (NIDA).

Because of this remarkably broad technical background, Loren likes to think of himself as “specializing in being a generalist”. Prior to joining Ladas and Parry, LLP, he was an associate attorney at a high tech law firm (D’Alessandro and Richie at San Jose, CA) and at a biotech law firm (Rae-Venter Law Group at Palo Alto, CA). In private practice, Loren has written and prosecuted about 300 patent applications in the fields of simple mechanical devices.


Ohio State University, Analytical Chemistry, Ph.D.
Washburn University School of Law, J.D.
Franklin Pierce Law Center (now University of New Hampshire), M.I.P. (Masters in Intellectual Property)
California State University, Analytical Chemistry, M.A.
Kansas State University, B.S. (Bachelor of Science in Electrical Engineering)
California State University, Biological Sciences, B.A.

Practice Areas
  • Patents – Chemical Engineering, Electrical Engineering

U.S. Patent and Trademark Office – Registered Patent Attorney

Publications & Presentations

Determination of delta-9‑Tetrahydrocannibinol in Human Plasma, Serum and Saliva by High Performance Liquid Chromatography with Amperometric Detection, Co-Authored with Cone, E.J.,  J. Chrom., 421, 91 (1987)
Confirmation of Cocaine in Human Saliva after Intravenous Use, Co-Authored with Yousefnejed, D. Kumor, K., Sherer, M. and Cone, E.J., J. Anal. Tox., 11, 36, (1987)
Complex Impedance Methods for Study of the Molybdenum Disulfide Electrolyte Interface, Co-Authored with Anderson, L.B., J. Electrochem. Soc., 130, 110C (1983) and Electrochem. Ext. Abstr., 83‑1, 816 (1983)
Electrochemical Studies of the Thermodynamics of Electron Transfer and Ligand Binding of Several Metalloporphyrins in Aprotic Solvents, Co-Authored with Kadish, K.M., Beroiz, D. and Bottomly, L.B., American Chemical Society ACS Symposium Series 38: “Electrochemical Studies of Biological Systems“, pp. 51‑64, (1977)