Sumitomo Electric Lightwave Corp.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G02B OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS 17188
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM4153
 
  
 
B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING 155
 
  
 
H01B CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING, OR DIELECTRIC PROPERTIES 173
 
  
 
H01J ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS 1127
 
  
 
H04B TRANSMISSION 1209

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7653277 Locatable dielectric optical fiber cable having easily removable locating elementOct 31, 07Jan 26, 10[G02B]
7313304 Locatable dielectric optical fiber cable having easily removable locating elementAug 09, 04Dec 25, 07[G02B]
6968106 Air blown fiber (ABF) cable with low composite coefficient of thermal expansionFeb 08, 05Nov 22, 05[G02B]
6853781 Air blown fiber (ABF) cable with low composite coefficient of thermal expansionAug 13, 01Feb 08, 05[G02B]
6633709 Water-blocked fiber optic ribbon cableMay 15, 01Oct 14, 03[G02B]
6363198 Optical fiber cable distribution shelf with cable management systemMar 07, 00Mar 26, 02[G02B]
6356697 Optical fiber cable distribution shelf with pivotably mounted traysNov 23, 99Mar 12, 02[G02B]
6101304 Air blown fiber (ABF) tube cable with central innerductOct 28, 98Aug 08, 00[G02B]
6091875 Optical fiber ribbon midspan splitter deviceJun 04, 98Jul 18, 00[G02B]
6049648 S-Z stranded optical cable with optimized short ROL pitchAug 26, 98Apr 11, 00[G02B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2008/0253,723 Optical fiber ribbon drop cableAbandonedApr 11, 07Oct 16, 08[G02B]
D331567 Optical connector strain relief bootExpiredJun 12, 91Dec 08, 92[]
5082347 Tape-like coated optical fiberExpiredSep 14, 90Jan 21, 92[G02B]
5043037 Method for making high strain aerial fiber optic cableExpiredNov 22, 89Aug 27, 91[G02B, H02G]
4953945 Transmission protective coated optical fiber tapeExpiredJun 02, 88Sep 04, 90[G02B]
4838690 Simultaneous bi-directional optical time domain reflectometry methodExpiredApr 12, 88Jun 13, 89[G01N]
4828349 Multicore optical fiberExpiredAug 04, 87May 09, 89[G02B, B32B]
4779978 Method of measuring the refractive index profile of optical fibersExpiredSep 08, 86Oct 25, 88[G01N]
4770489 Ruggedized optical communication cableExpiredAug 27, 86Sep 13, 88[G02B]
4763983 Optical transmission cable with messengerExpiredDec 31, 86Aug 16, 88[G02B, H01B, B65H]
4729629 Bonded sheath cable with lubricant over seamExpiredFeb 26, 87Mar 08, 88[G02B]
4715677 Ruggedized optical fiber cableExpiredDec 24, 85Dec 29, 87[G02B]
4662743 Method of measuring the geometry of optical fibersExpiredNov 01, 85May 05, 87[G01N]

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