Meet Our Leadership Team

Interdisciplinary Expertise

"A ceramics scientist, a bone biologist and a surgeon walk into a bar..." It sounds like the introduction of a corny joke. Our founders didn't meet in a bar, rather on a joint research project, but this unlikely trio recognized the synergy they had when working as a team and the end result... is SpheroFill Larynx!

This team is the most important asset of our company, and continues to innovate and propel SpheroFill forward.


Paul Weinberger

President & CEO

Dr. Weinberger is one of the three co-founders of SpheroFill, an inventor on key SpheroFill IP, and has served as CEO since the company’s inception. In addition to his leadership role at SpheroFill, Dr. Weinberger serves as an Associate Professor at Louisiana State University Health Sciences Center – Shreveport and is a board-certified Otolaryngologist / Head & Neck Surgeon. His undergraduate training was at Georgia State and Emory University (Atlanta, GA) followed by medical school at the Medical College of Georgia (Augusta, GA) and subsequent residency and fellowship training programs at Georgia Health Sciences University, Yale University, and the Royal National Throat Nose and Ear Hospital and University College of London. He has authored over 60 articles and chapters in the medical literature, and has 1 US Patent awarded and 4 patents pending. He has been the recipient of numerous national awards including the 2006 Fanconi Award from the American Head and Neck Society, and the AMA Foundation National Leadership Award in 2007 from the American Medical Association. He is nationally recognized as a leader in the field of Laryngology and his clinical interests includes tracheal stenosis, recurrent respiratory papillomatosis, laryngeal injection augmentation laryngoplasty, care of the professional voice, in-office vocal cord surgery, dysphagia, and esophagology.

George Wicks Ph.D.

VP Research & CTO

Dr. Wicks is one of the co-founders of SpheroFill, and led the team at the US Department of Energy that discovered the porous wall hollow glass microspheres that serve as the basis for a significant portion of SpheroFill’s IP portfolio. He received his undergraduate engineering degree from Florida State University, followed by masters and doctoral degrees at Harvard (M.S. Applied Physics and Engineering) and MIT (Ph.D. Metallurgy and Materials Science) respectively. He is one of the most respected and well-known ceramics scientists in the world, and has served as the president of the American Ceramics Society as well as been the recipient of numerous awards including the D.T. Rankin Award, the International Greaves-Walker award, and the South Carolina Governor’s Award for Excellence in Scientific Research. He has authored over 200 scientific manuscripts, and is a named inventor on almost two dozen awarded patents, including key SpheroFill IP. He has been designated as an Alpha Sigma Mu International Honorary Society “Distinguished Life Member” which is the highest honor in the that organization, awarded to “those select few whose technical attainment and contributions in the field of materials science and engineering have resulted in significant benefits to mankind.” He served 40 years at the Savannah River National Laboratory before retiring in 2013. As Chief Technical Officer, Dr. Wicks is responsible for overseeing the development and quality control of SpheroFill products, including microspheres.

William Hill, Ph.D.

Executive VP & CSO

Dr. Hill is one of the three founders of SpheroFill, and an inventor on key SpheroFill intellectual property. He is a Professor of both Anatomy and Cell Biology, and Orthopedic Surgery at Augusta University, as well as the Director of Regenerative Medicine at the Charlie Norwood VA Medical Center. He received his undergraduate education at Wake Forest University followed by masters and doctoral programs at the Bowman Gray School of Medicine followed by a post-doctoral fellowship at the University of Pennsylvania. He is an accomplished Bone and Regenerative Medicine researcher, with over 80 research articles, over 200 presentations at national and international meetings, and several patents. He is a reviewer for over 30 scientific journals and sits on the editorial board of three major journals. He has received numerous national and international awards and honors, including the Paul A. Duke Award and the Department of Veterans Affairs Southeast Network (VISN) 7 Henry M. Middleton Research Excellence Award. As Chief Scientific Officer of SpheroFill, Dr. Hill is responsible for establishing and executing a strategy within the company for conducting research and developing new scientific discoveries for biomedical applications.