Charlotte, NC Tier 1 Rankings

  • Litigation – Intellectual Property
  • Litigation – Patent
  • Patent Law

Charlotte, NC Tier 2 Ranking

  • Trademark Law
  • Copyright Law

National Tier 3 Ranking

  • Trademark Law

A Perfect Fit

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Additon, Pendleton & Witherspoon, P.A. is dedicated exclusively to the practice of intellectual property (IP) law. We provide a full range of intellectual property services for U.S. and international clients, with a focus on patent and trademark prosecution, litigation, licensing, and counseling.

We are a boutique intellectual property law firm.  Our practice is focused entirely on intellectual property.  Every one of our attorneys is a registered patent attorney.  While other law firms may have IP attorneys as part of their practice, intellectual property is our exclusive focus.  We are able to dedicate all of our resources to protecting, enforcing, and defending your intellectual property beginning at conception.


When you hire us, you are getting more than just lawyers.  You are getting scientists and engineers possessing education, work experience, and expertise in the following industries.

  • Biotechnology
  • Chemical
  • Computer technology
  • Fiber Optics
  • Materials Science
  • Medicinal chemistry
  • Mechanical

  • Nanotechnology
  • Nuclear
  • Optoelectronics
  • Petroleum
  • Pulp and paper
  • Semiconductors
  • Software