Brian H. Welker

WE Welker Engineering: 2 patents #1 of 3Top 35%

📍 Greenville, NC: #1 of 10 inventorsTop 10%

🗺 North Carolina: #32 of 1,241 inventorsTop 3%

Overall (1989): #11,531 of 140,708Top 9%

Patents 1989

Issued Patents 1989

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
4882939	Purge valve	—	1989-11-28
4841785	Vanishing chamber construction for liquid sampler	—	1989-06-27
4829835	Adjustable sand relief valve for sand laden crude oil	—	1989-05-16