Practice Areas > Patent Practice

Our patent practice group features dedicated and experienced patent practitioners who prosecute applications in a wide variety of technical areas to help our U.S. and international clients create valuable patent portfolios with an eye toward advancing their business objectives. In addition to preparing patent applications and advancing them to allowance and grant, we perform novelty, validity and freedom-to-operate searches, prepare clearance opinions, and handle appeals and other proceedings before the Patent Trial and Appeal Board.

Our Patent Practice Group

Patent Practice Results

Arendi S.A.R.L. v. Apple Inc., Google Inc., Motorola Mobility LLC

(Federal Circuit 15-2073, appeal of IPR2014-00208.)

Sunstein scored a victory on behalf of its client Arendi by obtaining a reversal of a PTAB decision that had invalidated Arendi’s patent. The court warned against using so-called common sense as a wholesale substitute for reasoned analysis to show how prior art combined with extraneous knowledge or insight might invalidate a patent claim. The Federal Circuit reversed the PTAB’s finding of unpatentability outright rather than remand the case for further consideration because it found no evidence in the record to suggest that Arendi’s technique was obvious.

Analog Devices, Inc.


We filed a petition for inter partes review against U.S. Patent No. 7,439,616. Earlier, we had filed inter partes reexaminations in rapid response to a district court action for patent infringement. We followed up with several more reexaminations. Worldwide litigation involving these and other patents was settled a couple months after the inter partes review was filed. The inter partes review was terminated upon submission of the settlement agreement.

Kotowski et al. v. Mastronardi et al. (Patent Interference No. 105,890)

United States Patent and Trademark Office, Patent Trial and Appeal Board

We obtained a win for our client American Science and Engineering in an interference proceeding against its competitor Rapiscan Systems. Interference proceedings are instituted before the Patent Trials and Appeals Board to establish priority of inventorship, because, for US patent applications filed prior to March 16, 2013, rights are awarded to the first inventor, irrespective of who first filed a patent application. For more recent applications, early filing is of increased importance. AS&E’s invention concerns backscatter x-ray technology.


Patent Award

Experience in:

Authentication and Cryptography

  • Biometric authentication
  • Secure communication
  • Encryption

Computer Hardware & Software

  • Data storage
  • Digital signal processing
  • Magnetic recording
  • Controller design
  • Cyber-security architecture
  • Quantum computing

Electronic Circuits and Systems

  • Power supplies
  • Radio range detection
  • Antenna systems

Energy Systems

  • Fuel cells
  • Solar cells
  • Combustion engine

Industrial Design and Processes

  • Computer-aided design
  • Engineering, manufacturing and fluid control systems
  • Semiconductor fabrication and packaging
  • Sensors

Mechanical and Electromechanical Devices

  • Microelectromechanical systems (MEMS)
  • Microphones and transducers
  • Motors
  • DC brushless motors
  • Electrostatic loudspeakers

Medical Devices, Process and Treatments

  • Diagnostic devices and tools
  • Medical equipment
  • Prostheses
  • Surgical devices


  • Data communications
  • Cable television
  • Internet and other network systems, devices and methods
  • Wireless communication systems

Alternative Energy

Artificial Intelligence

Business Related



Food Processing

Graphics and Printing


Life Sciences



Microprocessor Controlled Devices

Micro-electrical-mechanical Devices (MEMS)



Optics and Photonics


Speech Recognition

Sports Equipment



Woven, Non woven and Laminated Fabrics

X-ray systems

Patent Practice Articles

  1. AI Machine is Denied Patent
  2. Or Forever Hold Your Peace: Supreme Court Ruling Will Spur Early Efforts to Sway PTAB as to Timeliness of IPR Petitions
  3. Virus-Related Legislation Extends Patent and Trademark Deadlines
  4. Court’s Strict Interpretation of Timing Requirement May Force Patent Validity Challenges in Two Forums
  5. Does the Defense Production Act Provide a Safe Harbor Against Infringement Claims?
  6. Upgrade of Appeal Board Decisions Sought to Help Patent Medical Innovations
  7. Fresh is Best and Stale Will Fail: The PTAB Explains Its Logic in Refusing to Institute an IPR
  8. Federal Circuit Astonishingly Invalidates Manufacturing Method Patent under Section 101
  9. PTO Director Iancu Launches Bold Initiative to Resolve Uncertainty in Patent Eligibility Determinations
  10. New Guidelines Proposed for Functional Claiming in Computer-Related Inventions
  11. The Federal Circuit Refines the Post-Alice Landscape, Holding Spreadsheet Tabs Patent-Eligible
  12. Congress Freshens Up Music Copyright Law for the Digital Age
  13. Non-Competition Agreements: Massachusetts Meets California Halfway
  14. Massachusetts Trade Secret Protections Are About to Resemble Everyone Else’s. That Brings Changes that Businesses Should Know About.
  15. Federal Circuit Averts Huge Disruption to the Patent System by Fashioning a Cure to the Status of Administrative Judges
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Patent Practice_Using-Smartphones

Using Smart Phones to Improve Patient Outcomes

Wellframe’s patent relates to providing patients who have a treatment regimen use an app on their mobile phones to track and follow the regimen, and the app causes daily updating of care provider systems to show the extent of compliance and dynamic ranking of each patient according to degree of compliance, so that problems of patients in need can be addressed dynamically as well. With this systematic approach to patient care delivery, Wellframe has flourished, while improving patient outcomes, for a large number of different regimens.

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Contact Sunstein

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