GENERAL SIGNAL CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 3359
 
  
 
C30B SINGLE-CRYSTAL GROWTH 254
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 2445
 
  
 
H01Q AERIALS 2108
 
  
 
B23C MILLING 132
 
  
 
E21B EARTH OR ROCK DRILLING 195
 
  
 
F02N STARTING OF COMBUSTION ENGINES 132
 
  
 
F04B POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS 161
 
  
 
F16K VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING172
 
  
 
G01F MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME 158

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6398184 Lock device and lock method for knife gate valvesDec 29, 00Jun 04, 02[F16K]
6320555 Internally branch fed slotted coaxial antennaDec 14, 00Nov 20, 01[H01Q]
6313806 Slot antenna with susceptance reducing loopsFeb 11, 00Nov 06, 01[H01Q]
D442104 Combined horn and strobe alarm signalApr 25, 00May 15, 01[1005]
6226032 Crystal diameter control systemJun 10, 97May 01, 01[H04N, C30B]
D441475 Housing of emergency lighting fixtureJun 30, 98May 01, 01[2605]
6082031 Canopy mounting device for exit signJul 29, 98Jul 04, 00[G09F]
D426334 Emergency lighting fixtureJun 30, 98Jun 06, 00[2605]
6062821 Integral oil filter-pump systemOct 14, 98May 16, 00[F04B]
6039116 Oil and gas production with periodic gas injectionMay 05, 98Mar 21, 00[E21B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6650209 RF coaxial connector and method including a particle collecting hoodExpiredApr 25, 01Nov 18, 03[H01P]
6634784 Mixing impeller device and methodExpiredAug 17, 01Oct 21, 03[B01F]
6617940 System and method for feeding multiple broadcast antennas utilizing a single feed lineExpiredApr 09, 01Sep 09, 03[H01P, H01Q]
6580729 Signal multiplexer and methodExpiredNov 29, 99Jun 17, 03[H04J]
6538529 Signal separator and bandpass filterExpiredAug 16, 00Mar 25, 03[H01P]
2002/0181,325 Mixer seal and bearing apparatus and methodAbandonedJun 05, 01Dec 05, 02[B01F]
6299776 Biochemical oxidation system and processExpiredDec 23, 97Oct 09, 01[C02F]
6250797 Mixing impeller system having blades with slots extending essentially all the way between tip and hub ends thereof which facilitate mass transferExpiredOct 01, 98Jun 26, 01[B01F]
6219246 Heat sink apparatusExpiredJul 02, 99Apr 17, 01[H05H]
6050013 Mounting device for exit sign coversExpiredJul 29, 98Apr 18, 00[G09F]
6045242 Lighting fixtureExpiredJun 30, 98Apr 04, 00[F21V]
5746828 Temperature control system for growing high-purity monocrystalsExpiredJan 16, 96May 05, 98[C30B]
5297252 Color graphics terminal for monitoring an alarm systemExpiredMay 07, 91Mar 22, 94[G06F]
5260011 Method of making refractory ceramic products and the products thereofExpiredJun 24, 87Nov 09, 93[C04B]
5230437 Viewport assemblyExpiredJan 24, 92Jul 27, 93[B65D]
5227685 Dual function corrector for brush motorExpiredSep 16, 91Jul 13, 93[H02K, H01R]
5194228 Fluidized bed apparatus for chemically treating workpiecesExpiredOct 12, 90Mar 16, 93[B01J, C21D]
5076205 Modular vapor processor systemExpiredJan 06, 89Dec 31, 91[C23C]
5068205 Header mounted chemically sensitive ISFET and method of manufactureExpiredMay 26, 89Nov 26, 91[H01L]
5063392 Color change system for multicolor strip chart recordersExpiredJan 02, 90Nov 05, 91[G01D]

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Top Inventors for This Owner

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