Patents and Publications:

Patents

US Patent no 9120670B2: System and method for extruding parts having micro structures

US Patent no 8,814,954: Method of manufacturing products having a metal surface

US Patent no 8,720,047: Method for making micro structured objects

US Patent application no 20170014111: Micro structured surface

US Patent application no 20170224142: Micro structured surface with improved insulation and condensation resistance

US Patent application no 20150368838: Micro structured high friction surface for high friction to fabric, yarn and fibers

US Patent application no 20110311764: Multi-scale, multi-functional micro structured material

US Patent application no 20110266724: Method for manufacturing micro structured metal or ceramic parts from feedstock

US Patent application no 20150307773: Proppant for fracking fluid

Publications

Continuously Extruded Micro Textured Polypropylene Films Byron S. Villacorta,Sarah Hulseman, Andrew H. Cannon, Ralph Hulseman, Amod A. Ogale POLYMER ENGINEERING AND SCIENCE—2013, DOI 10.1002/pen 

Friction Characteristics of Micro Textured Surfaces Under Mixed and Hydrodynamic Lubrication
Ashwin Ramesh, Wasim Akram, Surya P. Mishra, Andrew H. Cannon, Andreas A. Polycarpou, William P. King, Tribology International 57 (2013) 170–176 

Extrusion of Low Friction and Low Tack Micro Structured Surfaces on Silicone Rubber 
Andrew H. Cannon, Mel Toub, and William P. King, Presented at the Fall 182nd Technical Meeting of Rubber Division, ACS Cincinnati, OH October 9-11, 2012.

A New Generation High-drag Proppant: Prototype Development, Laboratory Testing, and Hydraulic Fracturing Modeling 
Yinghui Liu, Ernesto Fonseca, Claudia Hackbarth, Shell International Exploration and Production Inc.; Ralph Hulseman, Kenneth N. Tackett II, Hoowaki LLC, Copyright 2015, Society of Petroleum Engineers, SPE173338