BRITISH COLUMBIA HYDRO AND POWER AUTHORITY

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 3156
 
  
 
B24B MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING 165
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM1156
 
  
 
E04H BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL 129
 
  
 
H02G INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES 148
 
  
 
H05K PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 1155

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9231394 Cementitious fibre reinforced composite cross armJun 22, 12Jan 05, 16[H02G, E04H]
8652629 Transmission cross armAug 31, 10Feb 18, 14[B32B]
7904261 Method and system for using phasor measurements in state estimation of power systemsAug 24, 07Mar 08, 11[G01R]
7816927 Method and system for real time identification of voltage stability via identification of weakest lines and buses contributing to power system collapseSep 25, 07Oct 19, 10[G01R]
7710729 Method and system of real-time estimation of transmission line parameters in on-line power flow calculationsSep 25, 07May 04, 10[H05K]
7033249 Dry ice blasting cleaning apparatusMay 13, 05Apr 25, 06[B24B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2014/0131,525 TRANSMISSION CROSS ARMAbandonedJan 22, 14May 15, 14[H02G]
8329350 Fuel cell power generation systemExpiredJun 27, 12Dec 11, 12[H01M]
8216732 Fuel cell power generation systemExpiredSep 23, 05Jul 10, 12[H01M]
2011/0139,503 CEMENTITIOUS FIBRE REINFORCED COMPOSITE CROSS ARMAbandonedDec 11, 09Jun 16, 11[H02G]
7256978 Gapped ground safety deviceExpiredSep 12, 03Aug 14, 07[H02H]
6634217 Live line method and tool for identifying electrical conductorsExpiredMar 28, 02Oct 21, 03[G01N]
5638297 Method of on-line transient stability assessment of electrical power systemsExpiredJul 15, 94Jun 10, 97[G06F]

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