Inventor
NIMBERGER SPENCER M
US101 patents
⚠️ This page may combine multiple inventors who share the name “NIMBERGER SPENCER M”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PGI INT LTD
35 patentsUS6840277B1Jan 11, 2005
Breakaway coupling with flapper valve
PGI INT LTD57 citations96
US6485175B1Nov 26, 2002
Temperature sensing device for metering fluids
PGI INT LTD72 citations96
US6067917AMay 30, 2000
Method and apparatus for flow control of NH3
PGI INT LTD39 citations96
USD606167SDec 15, 2009
Check valve
PGI INT LTD21 citations93
USD578549SOct 14, 2008
5 Valve port pipe by pipe manifold
PGI INT LTD32 citations93
USD544499SJun 12, 2007
5 valve port manifold
PGI INT LTD19 citations93
USD535722SJan 23, 2007
5 valve small bore 2 flange manifold block
PGI INT LTD17 citations93
USD521597SMay 23, 2006
5 valve large bore manifold
PGI INT LTD31 citations93
USD521596SMay 23, 2006
5 valve small bore manifold
PGI INT LTD24 citations93
USD520520SMay 9, 2006
5 valve port large bore double flange manifold
PGI INT LTD36 citations93
US6938636B1Sep 6, 2005
Breakaway coupling with flapper valve
PGI INT LTD21 citations93
US6854346B2Feb 15, 2005
Purging system for use with a gas sampling system
PGI INT LTD33 citations93
US5836352ANov 17, 1998
Environmental fill valve
PGI INT LTD24 citations93
US5832956ANov 10, 1998
Three valve controlled vent manifold
PGI INT LTD44 citations93
US5725024AMar 10, 1998
Manifold valve having controlled vent port integral with flange
PGI INT LTD37 citations93
US5720317AFeb 24, 1998
Low profile flanged manifold valve
PGI INT LTD47 citations93
US5503180AApr 2, 1996
Valve having easily replaceable seat
PGI INT LTD23 citations93
US7165883B2Jan 23, 2007
Temperature sensing device for metering fluids
PGI INT LTD30 citations92
USD624157SSep 21, 2010
Minimum bleed check valve
PGI INT LTD14 citations84
USD623723SSep 14, 2010
Reduced bleed check valve
PGI INT LTD12 citations84
USD603017SOct 27, 2009
Hammer union ball valve
PGI INT LTD9 citations84
USD602565SOct 20, 2009
Ball valve
PGI INT LTD15 citations84
USD602564SOct 20, 2009
Check valve
PGI INT LTD15 citations84
USD544883SJun 19, 2007
5 valve port manifold
PGI INT LTD16 citations84
USD544884SJun 19, 2007
5 valve port manifold
PGI INT LTD12 citations84
USD544500SJun 12, 2007
5 valve port manifold
PGI INT LTD14 citations84
USD520598SMay 9, 2006
5 valve large bore manifold
PGI INT LTD12 citations84
USD520110SMay 2, 2006
5 valve small bore manifold
PGI INT LTD12 citations84
USD519189SApr 18, 2006
5 valve small bore manifold
PGI INT LTD11 citations84
US6367775B1Apr 9, 2002
Universal fill valve
PGI INT LTD18 citations84
US6308753B1Oct 30, 2001
System for loading and unloading fluid tanks containing hazardous fluids
PGI INT LTD18 citations84
US6289752B1Sep 18, 2001
Sampling system
PGI INT LTD15 citations84
US6272931B1Aug 14, 2001
Full drain and vent adapter for pressure sensing transmitter
PGI INT LTD16 citations84
US6992569B2Jan 31, 2006
Safety shutdown system
PGI INT LTD14 citations82
US6513556B1Feb 4, 2003
Flexible hose passive shut down system
PGI INT LTD14 citations82
PRECISION GENERAL INC
6 patentsUS4920626AMay 1, 1990
Stabilized connector flange for interconnecting an instrument manifold with an orifice plate assembly
PRECISION GENERAL INC77 citations96
US5320133AJun 14, 1994
Flow system disconnect and method
PRECISION GENERAL INC32 citations93
US4974308ADec 4, 1990
Method for interconnecting an instrument manifold with an orifice plate assembly
PRECISION GENERAL INC36 citations93
US4930361AJun 5, 1990
Portable piston style sample cylinder
PRECISION GENERAL INC33 citations93
US5316351AMay 31, 1994
Hose swivel
PRECISION GENERAL INC25 citations88
US5257653ANov 2, 1993
Ejector pull away system and apparatus
PRECISION GENERAL INC20 citations82
GEN SCREW PROD CO
2 patentsNIMBERGER SPENCER M
2 patents(unassigned)
1 patentROCKWELL INTERNATIONAL CORP
1 patentPGI INTERNATIONAL INC
1 patentPGI INTERNAT LTD
1 patentPGI INTERNAT
1 patentShowing the top 50 of 101 patents by PatentIndex Score.