312-616-5600 (phone) 312-616-5700 (fax) Chicago Office
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DePaul University, J.D., magna cum laude, 1976
Colorado School of Mines, B.S. in Chemical Engineering, 1970
Leydig, Voit & Mayer opens San Francisco Bay Area office to serve technology industry more effectively January 17, 2012
Leydig, Voit & Mayer Attorneys Named In Illinois Super Lawyers and Rising Stars 2012 Lists January 4, 2012
H. Michael Hartmann Named In Illinois Super Lawyers Top 100 List January 4, 2012
Leydig Promotes Attorney to Member January 1, 2012
Leydig and Two of its Attorneys Selected as Leaders in Patent & Technology Licensing December 2011
Leydig Attorneys Named as Leading Lawyers November 17, 2011
Three Leydig Attorneys Listed In Best Lawyers 2012 September 7, 2011
Leydig, Voit & Mayer Attorneys Named In Illinois Super Lawyers and Rising Stars 2011 Lists January 4, 2011
H. Michael Hartmann Named In Illinois Super Lawyers Top 100 List January 4, 2011
Leydig Promotes Four Attorneys to Member January 1, 2011
Leydig Attorneys Named as Leading Lawyers November 1, 2010
Three Leydig Attorneys Named in Best Lawyers August 4, 2010
Leydig, Voit & Mayer Recognized Among Top IP Law Firms in Managing Intellectual Property™ 2010 World IP Survey June 30, 2010
Leydig, Voit & Mayer Recognized Among Top IP Law Firms in Illinois According to Chambers USA June 30, 2010
Leydig Voit & Mayer Recognized by The Legal 500 June 17, 2010
Leydig, Voit & Mayer Awarded Patent Prosecution Firm of the Year in the Midwest April 16, 2010
Leydig, Voit & Mayer Opens New Office in Frankfurt, Germany March 30, 2010
Leydig, Voit & Mayer Attorneys Named in Illinois Super Lawyers and Rising Stars 2010 Lists January 18, 2010
H. Michael Hartmann Named In Illinois Super Lawyers Top 100 List January 18, 2010
USG and Lafarge Agree to Resolve Certain Disputes December 7, 2009
Leydig Attorneys Admitted in Richard Linn American Inn of Court October 14, 2009
Leydig, Voit & Mayer Recognized Among Top IP Law Firms in Illinois According to Chambers USA July 28, 2009
H. Michael Hartmann Named to IPLAC Board of Managers May 14, 2009
