Methods for Vapor Pressure Leaching Polycrystalline Diamond Cutter Elements

Inventors: Guodong Zhan, Walter R. Rothrock, Parul Walia Dhall, Michael S. Nixon, Terry R. Matthias

Applicant: NATIONAL OILWELL VARCO, L.P.

Provisional Application Expired

	Code	Description	Pages	PDF
2012-12-03	`APP.FILE.REC`	Filing Receipt	3	View
2012-11-07	`ADS`	Application Data Sheet	7	View
2012-11-07	`TR.PROV`	Provisional Cover Sheet (SB16)	4	View
2012-11-07	`SPEC`	Specification	8	View
2012-11-07	`CLM`	Claims	2	View
2012-11-07	`DRW`	Drawings-only black and white line drawings	4	View
2012-11-07	`WFEE`	Fee Worksheet (SB06)	2	View
2012-11-07	`N417`	Electronic Filing System Acknowledgment Receipt	3	View

Inventors

Guodong Zhan Spring, TX

Walter R. Rothrock New Caney, TX

Parul Walia Dhall Spring, TX

Michael S. Nixon The Woodlands, TX

Terry R. Matthias Gloucester, UNITED KINGDOM

Attorneys & Agents of Record

THADDEUS FALESKI Reg. 60660 Attorney · CONLEY ROSE, PC

GREGORY MAAG Reg. 32363 Attorney · CONLEY ROSE AND TAYON PC

CHARLES ROGERS Reg. 38286 Attorney · CONLEY ROSE, P.C.

MICHAEL PIPER Reg. 39800 Attorney · CONLEY ROSE, P.C.

THOMAS WARDEN Reg. 47165 Attorney · CONLEY ROSE, P.C.

NIRAJ PATEL Reg. 57365 Attorney · CONLEY ROSE, P.C.

MATTHEW MOSCICKI Reg. 57524 Attorney · CONLEY ROSE, P.C.

CAROL SMITH Reg. 66084 Attorney · NATIONAL OILWELL VARCO

JONATHAN POLK Reg. 66334 Attorney · CONLEY ROSE, P.C.

ANDREW METRAILER Reg. 67353 Attorney · CONLEY ROSE, P.C.

JAMES HOOPER Reg. 74785 Attorney

MATTHEW GIBSON Reg. 75356 Attorney · CONLEY ROSE, PC

Prosecution

NATIONAL OILWELL VARCO, L.P.

from DHALL, PARUL WALIA, ZHAN, GUODONG, ROTHROCK, WALTER R., MATTHIAS, TERRY R., NIXON, MICHAEL S.

ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded 2013-12-04

Monitor This Case

Get email alerts when status or documents change.

Order Certified Copies

Most orders are placed with the USPTO same day — all within 24 business hours.

Pre-filled with this application's details

Quick Facts

External Links