PERMA-PIPE, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G08B SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS 391
 
  
 
F16L PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL268
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM1156
 
  
 
G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR166
 
  
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 1158

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9145999 Shear increasing systemMay 28, 09Sep 29, 15[F16L]
8049638 Sensor for detecting hydrocarbonsFeb 13, 07Nov 01, 11[G08B]
7824595 Method and system for cast molding a fluid conduitMay 25, 05Nov 02, 10[B32B]
7525444 Sensor for detecting hydrocarbonsFeb 17, 06Apr 28, 09[G08B]
5355720 Corrosion resistant cableMay 07, 93Oct 18, 94[G01M, G01R]
5334970 Alarm systemMay 21, 92Aug 02, 94[G08B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2016/0003,405 SHEAR INCREASING SYSTEMAbandonedSep 15, 15Jan 07, 16[F16L]
2013/0186,504 PRE-INSULATED PIPING SYSTEMAbandonedJun 14, 12Jul 25, 13[F16L]
2008/0072,988 Glass Syntactic Polyurethane Insulated ProductAbandonedAug 22, 07Mar 27, 08[F16L]
5410255 Method and apparatus for detecting and distinguishing leaks using reflectometry and conductivity testsExpiredMay 07, 93Apr 25, 95[G01R]
5185049 Apparatus for welding together dual containment pipe sectionsExpiredMay 23, 91Feb 09, 93[B29C]
4910998 Fluid detection system and method having a coaxial cable with solid, stranded dielectric elementsExpiredMay 01, 87Mar 27, 90[G01M, H01B]
4797621 Leak detector and locator utilizing time domain reflectometry and sampling techniquesExpiredJul 08, 87Jan 10, 89[G01M]

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