Gregory Hlatky

Technical Advisor

Practice Areas


Rider University, B.S., 1978

Yale University, Ph.D, 1983

University of Cambridge, Postdoctoral Assistant, 1983-1984


Greg Hlatky is a Technical Advisor in the Intellectual Property section.

Prior to joining Chamberlain Hrdlicka, Greg spent many years as a principal R&D investigator with major chemical companies. He is an inventor on several highly-cited, groundbreaking patents in ionic single-site catalysts, hafnium-based metallocene catalysts and constrained-geometry catalysts for olefin polymerization, all of which are now used commercially. In total, he is an inventor on 40 US patents as well as an author of over 30 literature publications.

Along with his research activities, Greg has worked extensively at the interface between technology and intellectual property, assisting with IP steering, patent prosecution, litigation and interference cases. Skilled in patent searching, he has performed current awareness, patent landscaping and novelty and freedom-to-operate searches in diverse fields such as petrochemicals, chemical engineering, the production, processing and applications of condensation, addition and natural polymers, catalysis, artificial sweeteners and preservatives.

Selected Patents

Polyolefin resin blends for crack-resistant pipe.  U.S. Patent 8,475,898 (2013)

Aluminum-free monocyclopentadienyl metallocene catalysts for olefin polymerization. U.S. Patent 7,163,907 (2007)

Catalysts for making polyolefins. U.S. Patent 6,838,410 (2005)

Propylene polymerization process. U.S. Patent 6,693,155 (2004)

Process for making low-density polyolefins. U.S. Patent 6,559,251 (2003)

Catalyst system of enhanced productivity and its use in polymerization process. U.S. Patent 6,355,592 (2002)

Olefin polymerization process with fatty amine additives for improved activity and reduced fouling. U.S. Patent 6,201,076 (2001)

Ionic metallocene catalyst compositions. U.S. Patent 6,245,706 (2001)

Supported single-site catalyst and olefin polymerization process. U.S. Patent 6,040,261 (2000)

Method for preparing alpha-olefin/cycloolefin copolymers. U.S. Patent 5,635,573 (1997)

Ionic metallocene catalyst compositions. U.S. Patent 5,198,401 (1993)

Catalyst system of enhanced productivity. U.S. Patent 5,153,157 (1992)

Selected Publications

Maintaining Current Awareness of Single-Site Catalysis Literature. Isr. J. Chem., 42, 361 (2003)

Beyond Metallocenes:  Next-Generation Polymerization Catalysts. ACS Books – Oxford University Press, Washington, DC, 2003

Modeling and Catalytic Performance of Group 4 Metal Complexes with Anionic Heteroaromatic Ligands. ACS Symp. Ser., 857, 76 (2003)

Heterogeneous Single-Site Catalysts for Olefin Polymerization. Chem. Rev., 100, 1347 (2000)

7,8-Dicarbaundecaborane(13). Inorg. Synth., 32, 229 (1998)

Supported Ionic Catalysts for Olefin Polymerization. Macromolecules, 29, 8019 (1996)

Metallacarboranes as Labile Anions for Ionic Zirconocene Olefin Polymerization Catalysts. Organometallics, 11, 1413 (1992)

Ionic, Base-Free Zirconocene Catalysts for Ethylene Polymerization. J. Am. Chem. Soc., 111, 2728 (1989)

Professional Affiliations

  • American Chemical Society
  • Patent Information Users Group