The Lee Company

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F15D FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS 29
 
  
 
F16K VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING271
 
  
 
F16L PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL268
 
  
 
B05B SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES 163
 
  
 
F04B POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS 161
 
  
 
G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES 183
 
  
 
H01H ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES 193
 
  
 
H02G INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES 148

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6863276 Device for sealing or reducing holes, and connecting holes with a tube endOct 09, 01Mar 08, 05[F16L]
6708978 Process for sealing or reducing holes, and connecting holes with a tube endJul 18, 01Mar 23, 04[H02G]
6003557 Removable sealing plugDec 17, 97Dec 21, 99[F16L]
5875967 Method and apparatus for dispensing fluid having volatile solventFeb 07, 97Mar 02, 99[B05B]
5819799 Method and apparatus for rapid fluid dispensingMay 10, 96Oct 13, 98[F16K]
5676309 Thermally responsive flow control valveDec 06, 94Oct 14, 97[G05D]
5511585 Method and device for providing fluid resistance within a flow passagewayMar 31, 94Apr 30, 96[F15D]
5505229 Fluid resistorJul 12, 93Apr 09, 96[F15D]
5422780 Solenoid drive circuitSep 27, 94Jun 06, 95[H01H]
5284425 Fluid metering pumpNov 18, 92Feb 08, 94[F04B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7543720 Method and apparatus for dispensing small volumes of fluidExpiredMay 04, 04Jun 09, 09[B67B]
2007/0262,028 Method and device for magnetically filtering fluidsAbandonedMay 12, 06Nov 15, 07[C02F]
2007/0125,435 Method and apparatus for installing fluid system componentsAbandonedNov 30, 06Jun 07, 07[F16K, F15B, H01F]
2003/0010,386 Flow control device and method of installationAbandonedJun 07, 02Jan 16, 03[F16K]
2001/0032,675 Bi-directional pressure relief valveAbandonedFeb 22, 01Oct 25, 01[F16K]
5160226 Tapered expansion sealing plugExpiredFeb 22, 90Nov 03, 92[F16B]
5085402 High speed solenoid valve actuatorExpiredAug 10, 90Feb 04, 92[F16K]
5023990 Device and method for removably retaining components in a smooth boreExpiredMay 05, 89Jun 18, 91[B23P, F16B]
5007454 Fluid control valve with tubular poppetExpiredSep 21, 89Apr 16, 91[F16K]
4958661 Check valveExpiredAug 08, 89Sep 25, 90[F16K]
4944487 Diaphragm valveExpiredMay 08, 89Jul 31, 90[F16K]
4930553 Pressure relief valveExpiredJan 23, 89Jun 05, 90[F16K]
4867333 High-pressure pin plugExpiredJun 10, 88Sep 19, 89[B65D]
4819009 Valve and nozzle system for ink jet printing apparatusExpiredJul 01, 87Apr 04, 89[G01D]
4804468 Self-retaining smooth bore insertExpiredMar 14, 88Feb 14, 89[B01D]
4766924 Pressure relief valveExpiredDec 08, 86Aug 30, 88[F16K]
4753727 Self-retaining smooth bore insert and method of installing sameExpiredApr 01, 86Jun 28, 88[B01D]
4715231 Maximum pressure indicatorExpiredNov 20, 86Dec 29, 87[G01L]
4706705 Check valveExpiredApr 01, 86Nov 17, 87[F16K]
4699715 Folded filter screenExpiredApr 01, 86Oct 13, 87[B01D]

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