H. E. WILLIAMS, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F21S NON-PORTABLE LIGHTING DEVICES OR SYSTEMS THEREOF 452
 
  
 
F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR 3107
 
  
 
F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING 247

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6767116 Lighting fixture assemblySep 24, 02Jul 27, 04[F21V]
6565238 Fluorescent light fixture with lateral ballastJun 23, 00May 20, 03[F21V]
RE36961 Cove lighting apparatusFeb 04, 98Nov 21, 00[F16B, F21S]
5785411 Track lighting systemOct 29, 96Jul 28, 98[F21S]
5678922 Lighting fixture and anodized metallic louver system thereforAug 16, 95Oct 21, 97[F21V]
5436816 Cove lighting apparatusSep 19, 94Jul 25, 95[F16B, F21S]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7588345 Lighting systemExpiredJan 04, 06Sep 15, 09[F21S]
6068383 Phosphorous fluorescent light assembly excited by light emitting diodesExpiredMar 02, 98May 30, 00[F21V]
5904415 Fluorescent bulb connector assemblyExpiredJun 25, 96May 18, 99[F21S]
4630181 Fluorescent lighting fixtureExpiredJul 15, 85Dec 16, 86[F21V]

Top Inventors for This Owner

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