NIAGARA MOHAWK POWER CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
A01D HARVESTING; MOWING141
 
 
 
G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS188
 
 
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 1190
 
 
 
H01M PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 1139

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5584723 Rechargeable battery assemblyNov 17, 93Dec 17, 96[H01M]
5491962 Cutting head assemblyNov 17, 93Feb 20, 96[A01D]
5329824 Centralizer for internal pipe inspection deviceJul 15, 93Jul 19, 94[G01B]
5235844 Multiple gas property sensorOct 23, 91Aug 17, 93[G01N]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6225257 Post-carbonization treatment of microporous carbons for enhancement of methane and natural gas storage propertiesExpiredSep 14, 99May 01, 01[B01J]
6187184 Traveling water screen having improved basketExpiredJul 30, 99Feb 13, 01[B01D]
6143159 Electrochemical autothermal reformerExpiredMay 21, 99Nov 07, 00[C10J]
6110615 Fuel cell power plant with electrochemical autothermal reformerExpiredJul 09, 98Aug 29, 00[H01M]
6068673 Electrochemical hydrogen compressor with electrochemical autothermal reformerExpiredJul 09, 98May 30, 00[B01J, C10K, C10J]
5993619 Electrochemical autothermal reformerExpiredMay 05, 99Nov 30, 99[B01D]
5976724 Fuel cell power plant with electrochemical autothermal reformerExpiredJul 15, 97Nov 02, 99[H01M]
5965010 Electrochemical autothermal reformerExpiredJul 15, 97Oct 12, 99[B01D]
5900031 Electrochemical hydrogen compressor with electrochemical autothermal reformerExpiredJul 15, 97May 04, 99[B01J]
5702609 Water retrieval from aqueous mixture of organic phosphatesExpiredMar 27, 95Dec 30, 97[C02F]
5487139 Method and system for generating a raster display having expandable graphic representationsExpiredSep 10, 91Jan 23, 96[G06F]
5426360 Secondary electrical power line parameter monitoring apparatus and systemExpiredFeb 17, 94Jun 20, 95[G01R]
5245279 Apparatus and method including flux injector pole position sensors for detecting physical flaws in ferromagnetic objectsExpiredJun 18, 92Sep 14, 93[G01R, G01N]
5195392 Internal pipe inspection systemExpiredMay 14, 90Mar 23, 93[F16L, G01M]
5184215 Lightning detecting and recording systemExpiredNov 26, 91Feb 02, 93[H04N]
5136248 Method and detector for identifying insulator flashoverExpiredJan 29, 90Aug 04, 92[G01R]
4977390 Real time method for processing alaarms generated within a predetermined systemExpiredOct 19, 89Dec 11, 90[G08B]
4971289 Valve assembly and locking means thereforExpiredNov 29, 89Nov 20, 90[F16K]
4951503 Method and apparatus for determining the heating value of a gaseous fuelExpiredJan 23, 90Aug 28, 90[G01N]
4926900 Valve assembly and locking means thereforExpiredMay 16, 89May 22, 90[F16K]

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