P

Inventor

ALVAREZ PATRICIO D

US9 patents
⚠️ This page may combine multiple inventors who share the name “ALVAREZ PATRICIO D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ACF IND INC

5 patents
US4124194ANov 7, 1978

Metallic seat construction for valves

ACF IND INC61 citations95
US4291862ASep 29, 1981

Expanding gate valve

ACF IND INC29 citations91
US4208035AJun 17, 1980

Metal gate valve seat having a flexible front lip face seal

ACF IND INC39 citations86
US4188014AFeb 12, 1980

Gate valve with position responsive interlock

ACF IND INC20 citations72
US4334666AJun 15, 1982

Expanding gate valve with position responsive interlock

ACF IND INC9 citations65

MASX ENERGY SERVICES GROUP INC

1 patent
US5305839AApr 26, 1994

Turbine pump ring for drilling heads

MASX ENERGY SERVICES GROUP INC142 citations98

KALSI ENG INC

1 patent
US7798496B2Sep 21, 2010

Rotary shaft sealing assembly

KALSI ENG INC34 citations92

DIETLE LANNIE L

1 patent
US8505924B2Aug 13, 2013

Rotary shaft sealing assembly

DIETLE LANNIE L14 citations82

NL INDUSTRIES INC

1 patent
US4613443ASep 23, 1986

Nonconducting thread lubricant

NL INDUSTRIES INC4 citations62