Gregory James Alexander Andrigo

City:

Almonte

Country:

Canada

Published Applications:

Last publication date:

2018-12-06

Top Assignees for applications by Gregory James Alexander Andrigo

The entities that hold a legal rights for patent applications filed by inventor Andrigo Gregory James Alexander:

TOP-CO INC. 6 Houston, TX United States
TOP-CO CEMENTING PRODUCTS INC. 3 Weatherford, TX United States
TOP-CO INC. 2 Weatherford, TX United States

Recent patent applications by Andrigo Gregory James Alexander

Gregory James Alexander Andrigo from Almonte, CA has applied for patents for these inventions. The list has both pending applications and granted patents:

#1 | 2018-12-06

US20180347290A1

Fixed constructions

Easy-start centralizer with asymmetrical bow springs

#2 | 2018-08-30

US20180245407A1

Fixed constructions

Deployable bow spring centralizer

#3 | 2016-10-27

US20160312566A1

Fixed constructions

Wellbore sealing systems and methods

#4 | 2015-12-31

US20150377372A1

Mechanical engineering

Convertible valve with retained conversion element

#5 | 2015-12-10

US20150354291A1

Fixed constructions

Easy-start centralizer with asymetrical bow springs

#6 | 2014-08-14

US20140224479A1

Fixed constructions

Stage tool apparatus and components for same

#7 | 2014-06-05

US20140151026A1

Fixed constructions

Casing centralizer and method of manufacturing same

#8 | 2014-05-22

US20140138097A1

Fixed constructions

Cementing plug apparatus and method

InventorID:

767045 ⎘