William M. Roberts

City:

Tomball, Texas

Country:

United States

Published Applications:

Last publication date:

2010-12-30

Top Assignees for applications by William M. Roberts

The entities that hold a legal rights for patent applications filed by inventor Roberts William M.:

Smith International, Inc. 9 Houston, TX United States

Recent patent applications by Roberts William M.

William M. Roberts from Tomball, US has applied for patents for these inventions. The list has both pending applications and granted patents:

#1 | 2010-12-30

US20100326650A1

Fixed constructions

Drillable bridge plug

#2 | 2010-04-08

US20100084146A1

Fixed constructions

Ball seat sub

#3 | 2008-12-18

US20080308266A1

Fixed constructions

Drillable bridge plug

#4 | 2008-10-30

US20080264627A1

Fixed constructions

Permanent anchoring device

#5 | 2008-08-14

US20080190600A1

Fixed constructions

Drillable bridge plug

#6 | 2007-10-04

US20070227745A1

Fixed constructions

Secondary lock for a downhole tool

#7 | 2007-05-15

US10245184

Torsional resistant slip mechanism and method

#8 | 2007-02-01

US20070023188A1

Fixed constructions

Mill and pump-off sub

#9 | 2005-09-01

US20050189103A1

Fixed constructions

Drillable bridge plug

InventorID:

3721455 ⎘