Tokyo Keiso Co., Ltd.

Patent Owner

Watch Compare Add to Portfolio

Stats

Details

Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E03B INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER 112
 
  
 
F16K VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING172
 
  
 
F17D PIPE-LINE SYSTEMS; PIPE-LINES 113
 
  
 
G01F MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME 158

Top Patents (by citation)

Upgrade to the Professional Level to View Top Patents for this Owner. Learn More

Recent Publications

  • No Recent Publications to Display

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8356627 Three-valves manifold for differential pressure type flow meterJul 23, 09Jan 22, 13[F16K, G01L, F17D, E03B]
5458004 Volume flow meterAug 30, 94Oct 17, 95[G01F]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7469601 Flow meter using digital signalsExpiredFeb 28, 07Dec 30, 08[G01F]
7299150 Ultrasonic flow meterExpiredNov 02, 06Nov 20, 07[G06F]
7219559 Flow meter using digital signalsExpiredAug 05, 05May 22, 07[G01F]
6230738 Flow rate control valve and flow rate control systemExpiredApr 26, 00May 15, 01[F16K]
4928524 Method and apparatus for measuring flow rate of a gas containing condensable components and mistsExpiredMar 23, 89May 29, 90[G01F]

Top Inventors for This Owner

Upgrade to the Professional Level to View Top Inventors for this Owner. Learn More

We are sorry but your current selection exceeds the maximum number of comparisons () for this membership level. Upgrade to our Level for up to -1 comparisons!

We are sorry but your current selection exceeds the maximum number of portfolios (0) for this membership level. Upgrade to our Level for up to -1 portfolios!.