RW

Robert H. Welker

WE Welker Engineering: 22 patents #2 of 8Top 25%
WE Welker: 1 patents #10 of 14Top 75%
Overall (All Time): #114,201 of 4,157,543Top 3%
32
Patents All Time

Issued Patents All Time

Showing 25 most recent of 32 patents

Patent #TitleCo-InventorsDate
7493914 Newtonian thrust cowl array 2009-02-24
6439267 Adjustable flow diffuser 2002-08-27
6289934 Flow diffuser 2001-09-18
6250330 Diaphragm regulator with removable diffuser 2001-06-26
5936168 Dual injector cylinder automatic insertion device for use with high pressure pipelines 1999-08-10
5924673 Method and apparatus for quieting turbulence in a gas flow line valve 1999-07-20
5769388 Flow diffuser and valve 1998-06-23
5730416 Method and apparatus for quieting turbulence in a gas flow line valve 1998-03-24
5454640 Flow diffuser for redistributing stratified liquids in a pipeline 1995-10-03
5307830 Flow distribution method and apparatus reducing downstream turbulence 1994-05-03
4908567 Power supply system for an optical inspection apparatus Ken Smith 1990-03-13
4850669 Explosion-proof optical fiber connector for a light source Ken Smith 1989-07-25
4830334 Resilient plug construction for a flow regulator incorporating stress limiting means 1989-05-16
4777567 Optical inspection apparatus Ken Smith 1988-10-11
4678290 Apparatus for visual inspection of closed machinery 1987-07-07
4631967 Automatic insertion device 1986-12-30
4557151 Sampler incorporating pressure balanced check valve 1985-12-10
4525127 Fluid pump mechanism 1985-06-25
4470773 Resilient chamber fluid sampler having vacuum breaker apparatus 1984-09-11
4463599 Free water volume analyzer 1984-08-07
4463603 Volume analyzer for crude oil sampling system including bite checking apparatus 1984-08-07
4442999 Reinforced plug for flow regulators 1984-04-17
4440032 Sampler incorporating a purge system 1984-04-03
4403518 Sampler apparatus 1983-09-13
4403519 Sample collection apparatus 1983-09-13