Patent Assignment
Reel/Frame 029644/0462
Release of Security Interest
Recorded: 2013-01-16
Pages: 18
Assignor
CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH
Executed: 2013-01-15
Assignee
VAREL INTERNATIONAL IND., L.P.
1625 W. CROSBY ROAD, SUITE 124, CARROLLTON, TEXAS, 75006
Covered Properties
(48)
High-Energy Cascading of Abrasive Wear Components
PCT:
PCT/US2004/029331 ↗
Texturing of the Bearing Surface for a Roller Cone Rock Bit
PCT:
PCT/US2009/037006 ↗
Texturing of the Seal Surface for a Roller Cone Rock Bit
PCT:
PCT/US2009/037029 ↗
Process for the Production of a Thermally Stable Polycrystalline Diamond Compact
PCT:
PCT/US2009/060547 ↗
Multi-Set Pdc Drill Bit and Method
PCT:
PCT/US2009/068573 ↗
Backfilled Polycrystalline Diamond Cutter with High Thermal Conductivity
PCT:
PCT/US2010/028807 ↗
Polycrystalline Diamond Cutter with High Thermal Conductivity
PCT:
PCT/US2010/028810 ↗
Self Positioning Cutter and Pocket
PCT:
PCT/US2010/029298 ↗
Rock Bit with Improved Thrust Face
Patent:
5,944,125 →
Application:
08/878,622 →
Bi-Center Bit Assembly
Patent:
6,298,929 →
Application:
09/457,425 →
Rotary Cone Bit for Cutting Removal
Patent:
6,450,270 →
Application:
09/669,998 →
Superabrasive Cutting Element
Patent:
6,488,106 →
Application:
09/777,295 →
Drag-Type Casing Mill/Drill Bit
Spiral Wave Bladed Drag Bit
Patent:
6,834,733 →
Application:
10/235,690 →
Bearing Seal
Breakable Washer Earth Boring Bit
Low-Contact Area Cutting Element
Drill Out Bi-Center Bit and Method for Using Same
Drilling Tool Having an Expandable Bladder and Method for Using Same
High-Energy Cascading of Abrasive Wear Components
Bearing Seal
Drill Bit with Multiple Cutter Geometries
Drill Bit with Staged Durability, Stability and Rop Characteristics
Application:
11/555,547 →
Publication:
US 2007/0267227
PDC cutter for high compressive strength and highly abrasive formations
Application:
11/643,718 →
Publication:
US 2007/0235230
Drill bit with application specific side cutting efficiencies
Application:
11/801,338 →
Publication:
US 2007/0272446
Process for the Production of an Element Comprising at Least One Block of Dense Material Constituted by Hard Particles Dispersed in a Binder Phase: Application to Cutting or Drilling Tools
Rock Bit Having a Seal Gland with a Conical Sealing Surface
Auto Adaptable Cutting Structure
Application:
12/171,070 →
Publication:
US 2008/0264696
Single Mold Milling Process
Process for the Production of a Thermally Stable Polycrystalline Diamond Compact
Rock Bit with a Thermal Insulating Seal Ring Positioned in the Seal Gland
Impregnated Rotary Bit
Method to Determine Rock Properties from Drilling Logs
Method of Texturing a Bearing Surface of a Roller Cone Rock Bit
Texturing of the Seal Surface for a Roller Cone Rock Bit
Sectorial Force Balancing of Drill Bits
Self Positioning Cutter and Pocket
Force Balanced Asymmetric Drilling Reamer and Methods for Force Balancing
High Energy Treatment of Cutter Substrates Having a Wear Resistant Layer
Multi-Set Pdc Drill Bit and Method
Drill Bit Supporting Multiple Cutting Elements with Multiple Cutter Geometries and Method of Assembly
Backfilled Polycrystalline Diamond Cutter with High Thermal Conductivity
Polycrystalline Diamond Cutter with High Thermal Conductivity
Rock Bit Having a Seal Gland with a Conical Sealing Surface
Auto Adaptable Cutting Structure
Application:
60/949,419 →
Milling Cap for a Polycrystalline Diamond Compact Cutter
Application:
61/182,382 →
Whipstock Attachment to a Fixed Cutter Drilling or Milling Bit
Application:
61/182,442 →
Casing Bit and Casing Reamer Designs
Application:
61/184,635 →
Related Assignments
(7)
Other recorded transfers of the patents in this record — the chain of ownership.
Security Agreement
Mar 1, 2011
From: VAREL INTERNATIONAL IND., L.P.
To: DRILLBIT WCF LIMITED
Reel/Frame 025877/0447 →
Security Agreement
Sep 26, 2011
From: VAREL INTERNATIONAL IND., L.P.
To: DRILLBIT WCF II LIMITED
Reel/Frame 026970/0678 →
Release of Security Interest
Feb 8, 2012
From: DRILLBIT WCF II LIMITED
To: VAREL INTERNATIONAL IND., L.P.
Reel/Frame 027787/0370 →
Patent Security Agreement
Jan 23, 2013
From: VAREL INTERNATIONAL IND., L.P.
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT
Reel/Frame 029682/0024 →
Security Agreement
Jan 31, 2013
From: VAREL INTERNATIONAL ENERGY FUNDING CORP.
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH
Reel/Frame 029731/0721 →
Release of Security Interest
Jun 4, 2014
From: CREDIT SUISSE AG, CAYMAN ISLAND BRANCH
To: VAREL INTERNATIONAL IND., L.P
Reel/Frame 033083/0969 →
Security Interest
Jun 30, 2020
From: VAREL INTERNATIONAL IND., LLC
To: INVESTEC BANK PLC
Reel/Frame 053090/0860 →