People

David Mattern focuses on complex litigation and intellectual property matters. He represents clients in a wide range of matters at the trial and appellate level in state and federal courts. 

David has represented clients at trial and appeal in courts across the country. His experience extends to a wide range of subject areas, including False Claims Act litigation, product liability litigation, professional liability litigation, and many other types of business litigation. David has particular expertise in copyright and trademark law and represents numerous music services in rate court disputes, before the Copyright Royalty Board, and before the Department of Justice. 

Full Bio

Credentials

J.D., Columbia University School of Law, James Kent Scholar

B.A., Case Western Reserve University, magna cum laude

District of Columbia

New York

Judicial Clerk, Chief Judge R. Guy Cole, U.S. Court of Appeals for the Sixth Circuit

Matters

Downtown v. Peloton (2019). Represents Peloton Interactive, Inc. in suit brought by music publishers in SDNY

Phonorecords III (2017). Represented Google before the Copyright Royalty Board in a proceeding to set the royalty rates paid to publishers for interactive streaming. 

Pandora v. BMI (2015). Member of trial team representing Pandora against Broadcast Music, Inc. in rate court proceeding under antitrust consent decree to determine public performance royalties for Pandora’s internet radio service.  

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Matters

Downtown v. Peloton (2019). Represents Peloton Interactive, Inc. in suit brought by music publishers in SDNY

Phonorecords III (2017). Represented Google before the Copyright Royalty Board in a proceeding to set the royalty rates paid to publishers for interactive streaming. 

Pandora v. BMI (2015). Member of trial team representing Pandora against Broadcast Music, Inc. in rate court proceeding under antitrust consent decree to determine public performance royalties for Pandora’s internet radio service.  

Represents a major wireless carrier in ongoing False Claims Act suits in state and federal court in California.

Represented one of the world's largest banks in a DOJ investigation alleging fraud in the sale of mortgage-backed securities. 

Represented one of the largest American car companies in a DOJ and NHTSA investigation regarding the timeliness of a recall. 

Defended the big four accounting firms in suits alleging auditor and tax accountant malpractice. 

Matters

Downtown v. Peloton (2019). Represents Peloton Interactive, Inc. in suit brought by music publishers in SDNY

Phonorecords III (2017). Represented Google before the Copyright Royalty Board in a proceeding to set the royalty rates paid to publishers for interactive streaming. 

Pandora v. BMI (2015). Member of trial team representing Pandora against Broadcast Music, Inc. in rate court proceeding under antitrust consent decree to determine public performance royalties for Pandora’s internet radio service.  

See more
Icon close

Close

Matters

Downtown v. Peloton (2019). Represents Peloton Interactive, Inc. in suit brought by music publishers in SDNY

Phonorecords III (2017). Represented Google before the Copyright Royalty Board in a proceeding to set the royalty rates paid to publishers for interactive streaming. 

Pandora v. BMI (2015). Member of trial team representing Pandora against Broadcast Music, Inc. in rate court proceeding under antitrust consent decree to determine public performance royalties for Pandora’s internet radio service.  

Represents a major wireless carrier in ongoing False Claims Act suits in state and federal court in California.

Represented one of the world's largest banks in a DOJ investigation alleging fraud in the sale of mortgage-backed securities. 

Represented one of the largest American car companies in a DOJ and NHTSA investigation regarding the timeliness of a recall. 

Defended the big four accounting firms in suits alleging auditor and tax accountant malpractice. 

Credentials

J.D., Columbia University School of Law, James Kent Scholar

B.A., Case Western Reserve University, magna cum laude

District of Columbia

New York

Judicial Clerk, Chief Judge R. Guy Cole, U.S. Court of Appeals for the Sixth Circuit