WELKER JET
Filed: January 21, 1981
Pneumatically and Hydraulically Actuated Automatic Control Valves for Liquids and Gases
Owned by: Welker Engineering Company
Serial Number: 73293768
VANISHING CHAMBER
Filed: January 21, 1981
Sampling Pumps for Removal of Liquid and/or Gas Samples from Pipelines and the Like
Owned by: Welker Engineering Company
Serial Number: 73293769
WELKER
Filed: December 5, 1986
METALLIC HIGH PRESSURE CYLINDERS USED FOR COLLECTION AND TRANSPORTATION OF SAMPLES
Owned by: Welker Engineering Company
Serial Number: 73634018
PRO-SAMP
Filed: December 4, 1989
METALLIC HIGH PRESSURE CYLINDERS USED FOR COLLECTION AND TRANSPORTATION OF SAMPLES
Owned by: Welker Engineering Company
Serial Number: 74007431
1-800-PRO-SAMP
Filed: January 28, 1992
metallic high pressure cylinders used for collection and transportation of samples
Owned by: Welker Engineering Company
Serial Number: 74240846
WELKERSCOPE
Filed: June 21, 1995
optical inspection apparatus for industrial use, namely, scope used for inspection of pipelines, vessels, and various other…
Owned by: Welker Engineering Company
Serial Number: 74691485
WELKER...WHEN EXCELLENCE COUNTS!
Filed: February 7, 1996
odorant injection pumps for adding a malodorous scent to natural gas to assist in the detection of leaks
Owned by: Welker Engineering Company
Serial Number: 75055387
WELKER...WHEN EXCELLENCE COUNTS!
Filed: February 7, 1996
metallic high pressure cylinders used for collection and transportation of compressed gas or liquid samples, sold empty
Owned by: Welker Engineering Company
Serial Number: 75055388
CLOSED CIRCUIT
Filed: February 6, 1998
Automatic valves; namely, spot samplers for natural gas, crude oil and refined product lines
Owned by: Welker Engineering Company
Serial Number: 75430047
ACCUMIST
Filed: May 12, 1998
Automatic valve, namely those utilized for injection of fluids into pipelines
Owned by: Welker Engineering Company
Serial Number: 75483458
WELKER FLOW MEASUREMENT SYSTEMS
Filed: June 9, 1998
Crude oil measuring equipment, namely, skid-mounted L.A.C.T. (lease automatic custody transfer) units for use in measuring…
Owned by: Welker Engineering Company
Serial Number: 75498414
WELKER FLOW MEASUREMENT SYSTEMS
Filed: June 9, 1998
Crude oil strainers
Owned by: Welker Engineering Company
Serial Number: 75498469
WELKER FLOW MEASUREMENT SYSTEMS
Filed: June 9, 1998
Skid mounted turbine meters for industrial use
Owned by: Welker Engineering Company
Serial Number: 75498519
WELKER FLOW MEASUREMENT SYSTEMS
Filed: June 9, 1998
skid mounted dual gas meter stations and skid mounted condensate meters, both for use in the natural gas industry; bidirectional…
Owned by: Welker Engineering Company
Serial Number: 75499251
LASERFLO
metal elbows for liquids and gases in industrial flow applications
Owned by: Welker Engineering Company
Serial Number: 75629633
