OTC LITTELFUSE, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H01H ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES 193

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5142262 Slow blowing cartridge fuse and method of making the sameJun 24, 91Aug 25, 92[H01H]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5139443 Housing assembly for plug-in electrical element having blade-type terminalsExpiredOct 31, 90Aug 18, 92[H01R]
5111177 Overload condition indicating fuseExpiredSep 25, 90May 05, 92[H01H]
5003281 Electrical fuse with self-centering fuse element and method for manufacture thereofExpiredJan 16, 90Mar 26, 91[H01H]
4997393 Housing assembly for plug-in electrical element having blade-type terminalsExpiredMar 23, 89Mar 05, 91[H01R]
4973932 Electrical fuse with coated time delay elementExpiredDec 08, 89Nov 27, 90[H01H]
4962363 Surface mountable leadless fuseExpiredApr 10, 89Oct 09, 90[H01H]
4918420 Miniature fuseExpiredNov 04, 88Apr 17, 90[H01H]
4768968 Fuse holder blockExpiredMay 24, 84Sep 06, 88[H01R]
4767339 Modular fuseblockExpiredMar 10, 87Aug 30, 88[H01R]
4762509 Shock-safe fuseholder assemblyExpiredNov 12, 86Aug 09, 88[H01R]
4762510 Shockproof fuseholderExpiredApr 06, 87Aug 09, 88[H01R]
4746784 Method of attaching a lead to a metal end cap of a safety fuseExpiredJun 05, 86May 24, 88[B23K]
4736180 Fuse wire assembly for electrical fuseExpiredJul 01, 87Apr 05, 88[H01H]
4724606 Method and apparatus for making a subminiature fuseExpiredDec 19, 86Feb 16, 88[B23P, H01H]
4703299 High current interrupting fuse with arc quenching meansExpiredApr 03, 86Oct 27, 87[H01H]
4670729 Electrical fuseExpiredJun 03, 86Jun 02, 87[H01H]
4661793 Plug-in fuse assembly with specially configured fuse linkExpiredOct 04, 85Apr 28, 87[H01H]
4656453 Cartridge fuse with two arc-quenching end plugsExpiredDec 10, 85Apr 07, 87[H01H]
4636765 Fuse with corrugated filamentExpiredMar 01, 85Jan 13, 87[H01H]
4635023 Fuse assembly having a non-sagging suspended fuse linkExpiredMay 22, 85Jan 06, 87[H01H]

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