Counterflow Technologies

University of Minnesota

CounterFlow Technologies provides unique, highly efficient spray nozzles for use in a wide variety of spray markets. Markets such as spray drying of food, flavors, pharmaceuticals, snow making, agriculture, etc. Our nozzle technology, can be retrofitted into current spray systems, significantly reduces the use of water (20 to 30%), reduces energy (30 to 50%) and CO2 production, expands spray technologies to high viscosity fluids, and increases production (10 to 30%) while eliminating or delaying the need for businesses to add additional infrastructure for capacity gains. These benefits would bring 100’s of millions of dollars of value to each of these markets.


Doug Parker, CEO, worked at 3M for 27 years, performing basic research, developing technology, commercializing innovative products and managing global R&D and new product development labs supporting over $1B in global sales. Doug has a B.S. in Metallurgical Engineering from Michigan Technological University and a M.S. and Ph.D. in Materials Science and Engineering from the University of Michigan.

Alison Hoxie, CTO, has performed research on fluid mechanics and combustion over the last 20 years, developing cost effective methods to mechanically break up heavy fluids into small droplets. Alison is an Associate Professor in the Department of Mechanical and Industrial Engineering at the University of Minnesota Duluth. Alison has a B.A. in Natural Science from the College of Saint Benedict and Saint John’s University, a B.M.E., and a Ph.D. from the University of Minnesota, Twin Cities.

Paul Strykowski, President and Founder, has worked in the broad area of fluid mechanics for 30+ years focused on countercurrent shear layers and the unique characteristics created when dissimilar fluids travel in opposing directions under very compact conditions. Paul is a Professor of Mechanical Engineering at the University of Minnesota, Twin Cities. He has a B.S. in mechanical engineering from the University of Wisconsin, and M.S. and Ph.D. degrees in mechanical engineering from Yale University.

Dr. Vinod Srinivasan, Principal Scientist and Founder, is an expert in the fundamentals and modeling of atomization and instabilities in two phase mixing layers and has been working in this field for over 20 yrs. Vinod is an Assistant Professor of Mechanical Engineering at the University of Minnesota, Twin Cities and has a M.S. and Ph.D. in Mechanical Engineering from the University of Minnesota, Twin Cities.