Walter T. Roush

KI Keystone International: 2 patents #23 of 50Top 50%

AL Anderson, Greenwood Lp: 1 patents #7 of 16Top 45%

📍 Houston, TX: #5,364 of 21,073 inventorsTop 30%

🗺 Texas: #33,546 of 125,132 inventorsTop 30%

Overall (All Time): #1,299,071 of 4,157,543Top 35%

Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #	Title	Co-Inventors	Date
5042151	Method for removing and inserting valve seats	—	1991-08-27
4982483	Valve seat tool for removing and inserting value seats	—	1991-01-08
4746095	Bonnet lock	—	1988-05-24
4426093	Stem packing with slitted flexible polymer sleeve	—	1984-01-17