Herman O. Henderson Jr.

Person

Houston, TX, US

People

Patents Grantslast 30 patents

Information Patent Grant
Wellhead annulus seal
- Patent number 5,456,314
- Issue date Oct 10, 1995
- ABB Vetco Gray Inc.
- Carl F. Boehm
- E21 - EARTH DRILLING MINING
Information Patent Grant
Wear bushing with locking collet
- Patent number 5,360,063
- Issue date Nov 1, 1994
- ABB Vetco Gray Inc.
- Herman O. Henderson
- E21 - EARTH DRILLING MINING
Information Patent Grant
Elastomeric seal with reinforcing ring
- Patent number 5,350,017
- Issue date Sep 27, 1994
- ABB Vetco Gray Inc.
- Herman O. Henderson
- E21 - EARTH DRILLING MINING
Information Patent Grant
Cement port closure sleeve for a subsea well
- Patent number 5,226,478
- Issue date Jul 13, 1993
- ABB Vetco Gray Inc.
- Herman O. Henderson
- E21 - EARTH DRILLING MINING
Information Patent Grant
Split wear bushing for a drilling rig
- Patent number 5,199,495
- Issue date Apr 6, 1993
- ABB Vetco Gray Inc.
- Norman Brammer
- E21 - EARTH DRILLING MINING
Information Patent Grant
Subsea wellhead stabilization
- Patent number 5,029,647
- Issue date Jul 9, 1991
- Vetco Gray Inc.
- Lionel J. Milberger
- E21 - EARTH DRILLING MINING
Information Patent Grant
Elastomeric lockdown and shearout device
- Patent number 4,978,147
- Issue date Dec 18, 1990
- Vetco Gray Inc.
- Herman O. Henderson
- E21 - EARTH DRILLING MINING
Information Patent Grant
Wellhead casing hanger support mechanism
- Patent number 4,919,460
- Issue date Apr 24, 1990
- Vetco Gray Inc.
- Lionel J. Milberger
- E21 - EARTH DRILLING MINING
Information Patent Grant
Temporary guide base retrieval method and apparatus
- Patent number 4,591,296
- Issue date May 27, 1986
- Smith International, Inc.
- Herman O. Henderson
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Breech block hanger support well completion method
- Patent number 4,540,053
- Issue date Sep 10, 1985
- Smith International, Inc.
- Benton F. Baugh
- E21 - EARTH DRILLING MINING
Information Patent Grant
Breech block hanger support
- Patent number 4,488,740
- Issue date Dec 18, 1984
- Smith International, Inc.
- Benton F. Baugh
- E21 - EARTH DRILLING MINING
Information Patent Grant
Hydraulic subsea control system with disconnect
- Patent number 4,453,566
- Issue date Jun 12, 1984
- Koomey, Inc.
- Herman O. Henderson
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Herman O. Henderson Jr.

Person

Patents Grantslast 30 patents

Wellhead annulus seal

Wear bushing with locking collet

Elastomeric seal with reinforcing ring

Cement port closure sleeve for a subsea well

Split wear bushing for a drilling rig

Subsea wellhead stabilization

Elastomeric lockdown and shearout device

Wellhead casing hanger support mechanism

Temporary guide base retrieval method and apparatus

Breech block hanger support well completion method

Breech block hanger support

Hydraulic subsea control system with disconnect