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Schwegman Lundberg & Woessner

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Areas of Practice
  • Electrical & Computers
  • Mechanical & Electromechanical
  • Medical Devices
  • Software & E-Commerce
IP Services
  • Freedom To Operate
  • Patent Prosecution
  • Patent Analytics
  • Portfolio Management & Analysis
Bar Admissions & Associations
Published Works
Past Employment Positions

Dan Li is a registered patent attorney, admitted to practice in Massachusetts and before the U.S. Patent and Trademark Office.  His practice includes patent prosecution, portfolio analysis, and freedom-to-operate opinions.  Dan has a technical background of electrical engineering, biomedical engineering, and artificial intelligence. Before joining Schwegman, Dan was a principle research scientist, and had over 10 years of experience in algorithm design and development in medical device industry, and had managed a number of research projects and clinical studies. The extensive prior corporate R&D experience has prepared him for better appreciating clients’ business objectives and competitive landscape of technology, and strategically maximizing the value of clients’ patent portfolios.  Dan enjoyed working with inventors.  Being an inventor of over 70 patents himself, Dan has a deep understanding of scientist or engineer inventors’ approach to their inventions, their focuses, aspects that they tend to neglect, as well as assistance they need from attorneys in perfecting their patent application.  Dan has a work philosophy of “planning strategically — staying focused — getting the job done,” which he believes is a key to effective time management and better work-life balance.   

William Mitchell College of Law
St. Paul, MN, J.D. 2014 
William Mitchell Merit Scholarship

CALI Excellence for the Future Award

University of Wisconsin-Madison
Madison, WI, 2002, M.S.E.E.
Major: Signal Processing and Communication

Minor: Computer Science (Artificial Intelligence)

University of Kentucky
Lexington, KY, 1999
M.S. in Biomedical Engineering
Major: Neural System

Modeling and Signal Processing

Tsinghua University
Beijing, China, 1996, B.S.E.E.

Electronics and Biomedical Engineering focus

Bar Admissions & Associations
Bar Admissions & Associations
Bar Admissions

U.S. Patent and Trademark Office

Professional Associations
American Bar Association
American Intellectual Property Law Association
Massachusetts Bar Association
Boston Bar Association


Published Works
Published Works
“Discrimination of atrial tachyarrhythmia using interval irregularity and morphologic complexity of the intracardiac electrograms”

Heart Rhythm, 3(5), S150, 2006

“Detection, classification, and tracking of targets”

IEEE Signal Processing Magazine, 19(2), 17-19, March 2002.

“Energy based collaborative source localization using acoustic micro-sensor array”

EURASIP Journal on Applied Signal Processing, 4:321-337, March 2003.

“Tracking rhythmicity in nonstationary quasi-periodic biomedical signals using adaptive time-varying covariance”

Computers in biology and medicine, 32(4):261-282, 2002.

“Quantifying co-evolution of nonstationary biomedical signals using time-varying phase spectra”

Annals of Biomedical Engineering, 28(9):1101-1115, 2000

Past Employment Positions
Past Employment Positions

Boston Scientific Corporation / Guidant, Principal Research Scientist and Project Lead, 2002 – 2012

Motorola Inc., Software Engineer Intern, 2000