E-CD ENI CIRCULATING DEVICE Trademark
Serial Number: 79245172 • Registration: 5790880
Trademark Classes
Class 7 - Machinery
Machines and machine tools; motors and engines; machine coupling and transmission components
Class 37 - Building & Construction
Building construction; repair; installation services
Class 42 - Computer & Scientific
Scientific and technological services; industrial analysis and research services
Owner Contact Info
Legal Representation
Correspondence Address
Larry H. Tronco Holland & Hart LLP
P.O. Box 8749
Attn: Trademark Docketing
Denver, CO 80201-8749
United States
Trademark Details
Filing Date
April 16, 2018
Registration Date
July 2, 2019
Published for Opposition
April 16, 2019
Goods & Services
Services related to the design and development of system comprised of a circulation device able to control and divert drilling fluid flow through one or more drill string components that are part of the system, used in a drilling process in managed pressure drilling in order to precisely control the annular pressure profile throughout the wellbore
Drilling machines; circulating pumps
Rental of oil well drilling tools; rental of drilling apparatus; rental of drilling equipment and pumps for oil services
