About Us

ZetrOZ™ is revolutionizing the ultrasound industry by introducing proprietary generator technology that is more efficient, more portable, and more economically viable than any ultrasound generator presently available.

ZetrOZ's first product is the world's smallest ultrasound pain therapy device. This device (currently in clinical trials) addresses the demand for non-pharmaceutical alternatives to current pain treatments in the approximately $50 billion global pain management market. 

ZetrOZ™ technology is also available for licensing.  Contact us today if you are interested in making your ultrasound device more competitive in size, functionality, and pricing.

Bryant GuffeyBryant Guffey

Chief Executive Officer and co-founder
bguffey@zetroz.com

Guffey has extensive experience in product design and management from his career as a lead design engineer at General Dynamics C4 Systems. While at General Dynamics Guffey managed multiple development projects including a joint venture between GD and BAE Systems for a new product design.

Guffey helped found ZetrOZ in early 2009 following his work with Ithaca based startups Mezmeriz Inc. and Sound Reading Solutions Inc. He has Masters in Business administration from Cornell University and a Bachelors in Electrical Engineering from the University of Arizona.

George K. Lewis George K. Lewis Jr., Ph.D. 

Chief Scientific Officer, Inventor, and Co-founder
george@zetroz.com

Lewis is a prolific inventor that has been born, raised and educated in ultrasound physics and wave propagation. Lewis has integrated his ultra-low impedance ultrasound miniaturization technology into many academic and industry research and commercialization efforts including non-invasive surgeries, pre-natal imaging, cancer ablation, and wound healing. His doctoral studies in Neurobiology (minor), Mechanical Engineering (minor) and Biomedical-Chemical Engineering (primary) at Cornell University focused on ultrasonic applications for drug delivery in glioblastoma therapy.

Lewis was Presidential Life Science Fellow, a National Science Foundation Research Fellow, and Cornell University nominee for the Brilliant Ten Popular Science and Forbs 30 under 30 awards. Lewis was awarded the distinguished CIMIT Prize for Primary Health Care for his research on minimally invasive osteoarthritis therapies, which along with matching support from Cornell launched his academic research and training laboratory in the Department of Biomedical Engineering at Cornell University (www.cornellbme.com). He is an author on over 20 peer reviewed publications, has conducted 55 lectures at national medical engineering meetings, and retains a dozen industrial research partnerships. Lewis serves as the Chair of Therapeutic Ultrasound for the American Institute of Ultrasound in Medicine, session chair for bioacoustics for the Acoustical Society of America, and reviewer for JUIM, IEEE, NIH and NSF manuscripts and grants. Additionally, Lewis is an avid entrepreneur who previously founded three successful businesses Top of the Class Tutors LLC, Southern Tier Tutors LLC and Kool Kennel LLC. Lewis used his previous leadership and business experience to build a team around portable ultrasound applications, ultimately leading to the founding of ZetrOZ.

JoAnne GuarinoJoAnne Guarino

COO
jguarino@zetroz.com

Guarino is the current COO of ZetrOZ and was introduced to Guffey and Lewis through the Cornell entrepreneurship network. Along with her current responsibilities at ZetrOZ, Guarino is the COO of the Vein and Laser Centers of Central NY, a multi-million dollar collaboration of doctors who provide cosmetic services from multiple locations across upstate New York. She is a business specialist with over thirty years of experience in management, entrepreneurship, and computer technology.

Guarino previously worked in the venture capital market analyzing companies for private investors in Europe and the Middle East, as well as assisting start-up and mature companies in developing their business models and market strategies. Prior to her consulting career Guarino was CEO of two successful computer technology start-ups.

John TurnerJohn Turner

Business Development
jturner@zetroz.com

Turner’s current responsibilities include business development, strategic alliances, and mergers & acquisitions at USA Datanet. He has 25 years of C-Level experience with companies in Operations, Technology, and Business Development roles and has successfully launched several technology based companies. Mr. Turner owns a business development consulting firm and serves as a Director and Advisor for several high-tech companies and charitable organizations.

Denny DeLeo

Business Advisor
dmdeleo@zetroz.com

During his tenure at Eastman Kodak, Denny held positions of increasing responsibility. Initially, he was a member of the legal division, practicing primarily patent law. Later, as a Kodak Vice President and Director, Corporate Commercial Affairs, he managed a corporate staff responsible for a wide range of technology-based transactions, including, licensing, business partnerships and acquisition and divestiture of technology, products and businesses.

DeLeo also held Kodak operating management positions as Vice President and General Manager of the Bioscience and Emerging Businesses Division and Vice President, General Manager of the Image Acquisition Products Division. The latter made and sold CCD image sensors, digital camera and image scanners. He also served as President and CEO of Eastman Technology, Inc., a Kodak subsidiary formed to launch businesses based on leading-edge technologies. As chief executive, he had overall profit-and-loss accountability and managed a portfolio of more than a dozen new ventures ranging from under $1 million to over $50 million in annual revenue.

In 1997, DeLeo co-founded Trillium Group, LLC, a regional venture capital and private equity firm based in Rochester, New York. He is the fund manager of the Monroe Fund, an early stage venture capital fund within the Trillium Group fund family.

He holds a B. A. from the University of Rochester, a J.D. from the University of Chicago Law School and completed the Advanced Management Program at the Harvard University Graduate School of Business. He is a former member of the Patent Policy Board of the State University of New York and a former Vice Chairman of the Rochester Philharmonic Orchestra Board. He is a Board member of the Upstate Venture Association of New York and sits on a number of private company boards, including companies in the Trillium Group portfolio and companies unaffiliated with Trillium Group.