David Grossman

David G. Grossman, Esq.

  • Admitted to practice law in the District of Columbia and before the United States Patent and Trademark Office
  • Principal, PatentServices.com
  • President, National Association of Patent Practitioners (NAPP)
  • Adjunct Professor of Law, George Mason University School of Law
  • Works with research institutions, companies, and individuals:
    • Management of intellectual property
    • Prosecution of patents
    • Development, licensing, and commercialization of new technologies
  • Inventor for 17 US patents and several patents pending
  • Participated several times in the complete "start-up" lifecycle from intial concept to exit
  • Engineering experience spans from designing toy rockets for Fisher-Price Toys to leading the software and avionics design of the NASA/Orbital X-34 rocket plane
  • Actively involved in the Association of University Technology Managers (AUTM)


American University


  • U.S. Patent No. 8,504,988, Live Component Authoring System (issued Aug. 6, 2013)
  • U.S. Patent No. 8,358,215, Attention Assistance and Monitoring (issued Jan. 22, 2013)
  • U.S. Patent No. 8,230,227, Method for Generating a Temporally Threaded CMI Watermark (issued July 24, 2012)
  • U.S. Patent No. 7,844,822, Temporally Threaded CMI Watermark (issued Nov. 30, 2010)
  • U.S. Patent No. 7,668,503, Secure Remote Repeater (issued Feb. 23, 2010)
  • U.S. Patent No. 7,484,100, Temporally Threaded CMI Watermark (issued Jan. 27, 2009)
  • U.S. Patent No. 7,346,185, Optical Content Modulation for Visual Copyright Protection (issued Mar. 18, 2008)
  • U.S. Patent No. 7,218,754, Visual Copyright Protection (issued May, 14, 2007)
  • U.S. Patent No. 7,076,763, Live Component System (issued July 11, 2006)
  • U.S. Patent No. 6,950,532, Visual Copyright Protection (issued Sept. 27, 2005)
  • U.S. Patent No. 6,923,367, Safety Mailbox (issued Aug. 2, 2005)
  • Patents directed towards Control Apparatus for Powered Vehicle Door Systems:
    • U.S. Patent No. 5,684,470 (issued Nov. 4, 1997)
    • U.S. Patent No. 5,389,920 (issued Feb. 14, 1995)
    • U.S. Patent No. 5,239,779 (issued Aug 31, 1993)
    • U.S. Patent No. 5,189,839 (issued June 8, 1993)
    • U.S. Patent No. 5,216,838 (issued June 8, 1993)
    • U.S. Patent No. 5,140,316 (issued Aug. 18, 1992)
  • U.S. Patent Appl. No. 61/749,978, Image Alignment of Multiple Display Devices (Filed Jan. 8, 2013)
  • U.S Patent App. No. 13/441,844, Data Privacy Mechanism (filed April 07, 2012)
  • U.S Patent App. No. 13/093,407, Attention Assistance and Monitoring (filed April 25, 2011)
  • David G. Grossman, Screening the Screeners 45 IDEA 361 (2005).  This article discusses the problem of movie piracy and proposes a technical/legal solution involving the use of a newly proposed temporally threaded watermark in combination with legal action under 17 U.S.C. 1202 of the Digital Millennium Copyright Act



  • Patent Practice
    • Prosecuting patents in a private patent practice since 1999 
    • Clients include corporate and individual inventors

George Mason University
  • Assistant Director, Office of Technology Transfer
    • Evaluate, protect, and license cutting-edge innovations developed by George Mason University faculty, staff, and students
    • Prosecute non-life science technologies
    • Assist Director in planning, developing strategic directions and day-to-day management of the office
    • Directly supervise patent agent, paralegal, interns and work-study personnel
    • Provide presentations, lectures and counseling on technology transfer and intellectual property issues throughout the University
    • Develop and maintain productive relationships with George Mason faculty and administration
  • Adjunct Professor of Law
    • Teach a clinical patent drafting course at the George Mason University School of Law
    • Students draft real patent applications for technologies developed by George Mason University faculty, staff, and students

  • Visual Copyright Protection
    • Cinea was founded to provide anti-piracy solutions to the worldwide motion picture and television industries
    • Along with one of Cinea's founders, conceived (and patented) a visual copyright protection technology that prevents camcorders from recording projected movies
    • Cinea developed this technology further in collaboration with Sarnoff Corporation under a multi-million dollar grant from the National Institute of Standards and Technology (NIST)
    • Prosecuted and managed the Cinea patent portfolio since its inception
    • Assisted Cinea with patent-related due diligence when it was acquired by Dolby Labs in 2003

  • Corporate Patent Agent
    • Prosecuted and managed the patent portfolio for Digital Video Express LP (DIVX), a subsidiary of Circuit City Stores, Inc.
    • IP included Digital Versatile Disc (DVD) system enhancements, novel business model implementations, electronic security, and electronic cinema 
    • Worked with inventors, patent searchers, other patent practioners, and corporate management to ensure that time constraints, continuity of patent related issues, and cost containment were managed in an efficient and effective manner 
    • Additional responsibilities included regularly reviewing IP discovery issues with internal staff, as well as  monitoring and assessing applicable developments in technology relating to DIVX’s IP, included managing technical and IP issues related to future business 
    • Authored a short paper entitled Remembering DIVX, An Intellectual Property Case Study examining the history of the intellectual property related to the DIVX venture

  • Rockets
    • Lead Software Engineer for the NASA/Orbital X-34 rocket plane, the Pegasus air launched rocket and the Taurus ground launched rocket
    • Developed new subsystem interfaces; maintained, built, released and implemented improvements to flight, simulation, and ground support software; and wrote custom payload interfaces
X-34 Rollout
    • X-34
      • X-34 is a reusable technology test bed vehicle that is designed to demonstrate technologies that are essential to lowering the cost of access to space
      • The vehicle structure is all-composite with a one piece delta wing design, 58 feet in length and 28 feet wide 
      • The X-34 vehicle is capable of speeds up to Mach 8 and altitudes of 250,000 feet
      • Specific technologies designed into the vehicle include autonomous flight operations, composite structures, composite RP-1 fuel tank, advanced thermal protection system, and leading edge tiles
      • This project was NASA's first test bed vehicle since the X-15
Pegasus in flight
    • Pegasus 
      • Pegasus is a patented three-stage, delta-wing, air launched rocket that can carry satellites weighing up to 1,000 pounds into low-Earth orbit
        • Carried aloft by an L-1011 aircraft to a point approximately 40,000 feet over open ocean, where it is released and then free-falls in a horizontal position for five seconds before igniting its first stage rocket motor
        • With the aerodynamic lift generated by its delta wing, Pegasus places satellites into orbit in a little over 10 minutes
        • The world's first privately developed space launch vehicle, and the first winged vehicle to accelerate to eight times the speed of sound
    • Taurus 
      • Taurus is a four-stage, ground-launched rocket derived from the strong heritage of the Pegasus program
      • Fills the cost and performance gap between Pegasus and the industry's much larger, more expensive launch vehicles, delivering satellites weighing up to 3,000 pounds into low-Earth orbit, or up to 800 pounds into geosynchronous transfer orbit
      • Fully transportable, capable of launching from austere sites, and able to be quickly assembled to provide rapid response launches
  • Satellites
    • Developed spacecraft flight software for the Advanced Photovoltaics and Electronics Experiment (APEX) spacecraft
    • APEX was a 572 pound orbital lab containing various experiments for the United States Air Force including an advanced photovoltaic experiment
    • Main mission was to test a wide array of electronic components in an orbit that placed it in the Van Allen Belt where it was exposed it to a harsh radiation environment 
    • Operated for several times its planned mission which was to survive more than a year in an environment where it would be exposed to more radiation than most low Earth orbiting satellites receive in 10 years

  • Musical Instrument Design
    • Developed a complete solid model of an acoustic guitar using an advanced computer aided design system 
    • Studied with several master instrument makers and repairman including Wayne Henderson, Keith Young, Robert Zatzman and Edward Smith 
    • Made over thirty instruments, including violins, mandolins, hammered dulcimers, mountain dulcimers, and guitars
    •  Developed and marketed the "Neo" family of high-tech electric guitars and violins 
    • After building the first set of prototypes, started a corporation which successfully acquired funding and took these high-end products to market 
    • New technologies developed for the musical instruments includes carbon composite necks, inaudible miniaturized neon tube power supplies, a novel musical instrument body construction, piezo electric transducer electronics, and performance control systems

  • Bio-telemetry
    • While operating a consulting corporation for many years, personally performed many tasks for a variety of customers
    • Produced algorithms and firmware for a bio-telemetry system used by the United States Army's Human Engineering Lab 
    • This system provides real time monitoring of soldiers body functions including heart waveforms through a wireless link 
    • The system was installed and used at the Aberdeen Proving Grounds in Aberdeen Maryland


  • Industrial Printing Equipment
    • Ported a proprietary real-time kernel to new hardware for a large printing company, which required writing new event and device drivers including support for dozens of concurrent interrupts 
    • Developed an Imager Registration Controller application and a diagnostics application utilizing the new embedded kernel


  • Supervisory Control And Data Acquisition
    • Designed and supervised the installation of a Supervisory Control And Data Acquisition system for the Elizabeth River Tunnel that runs between Portsmouth and Norfolk Virginia
    • Wrote all of the firmware for the remote data acquisition and control boxes that reside throughout the tunnel


  • Mini-van Power Door Controller
    • Developed the protocol and firmware for a patented mini-van power door control system for use by a major US auto manufacturer 
    • One embodiment of the system uses magnetic resonance modulation to control the power door wirelessly. 
    • Magnetic resonance modulation confines all of the control signals within the body of the mini-van, preventing the possibility of accidentally powering the door of another mini-van


knitting machine
  • Industrial Knitting Machine Controller
    • Designed a multi-processor high-speed industrial knitting machine controller for a prominent loom manufacturer in North Carolina 
    • The design used separate processor-based control systems for the human interface, the machine interface, and the needle controllers 
    • All of the control systems operate together real time using synchronous serial communications protocols and links


  • Airline Communications
    • Provided firmware support for ARINC Ground Station Controllers. 
    • These ground station controllers use RF HDLC digital packets to communicate information to and from airliners in flight 
    • The units were fielded throughout the United States and utilized by the airline industry


wireless printer link
  • Wireless Printer Link
    • Generated the hardware design, algorithms and firmware for a Wireless Printer Link 
    • The wireless printer link is capable of linking a multitude of computers to a single printer using a novel low level radio frequency transceiver 
    • The devices uses an intelligent distributed buffering and control methodology


Traffic Control Box
  • Computerized Traffic Control
    • Developed firmware, configured hardware and supervised the installation of Remote Communications Units and test boxes in computerized traffic control telemetry systems for a dozen cities while working for Sonex Corporation and as a private consultant 
    • Developed firmware for a Gulf and Western ADEC aircraft capture net


FC1000 Punch Press
  • Computer Numerical Controlled  Industrial Equipment
    • Provided hardware/software development and support for a Houdaille Industries, Inc. Computer Numerical Controller that is used with laser cutters, plasma cutters, and punch presses
    • Responsibilities included hardware and software design, development, and support; generation of product documentation; and provision of product support to customer support, marketing, service, and manufacturing departments


F-P Toys
  • Toys
    • Designed electronic toys and games for Fisher-Price Toys, most of which were based on single chip micro controllers
    • The designs combined maximal performance and reliability with minimal circuitry and cost


  • Radar
    • For RCA's Missile and Surface Radar Division, redesigned the Navy’s AEGIS phased array antenna's beam-steering controller utilizing bit-slice microprocessors
    • Aided in the design of a new digital phase shifter for use in the same AEGIS phased array antenna



Contact David Grossman at 202-670-7868