ENTECH, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 5357
 
  
 
F24J PRODUCTION OR USE OF HEAT NOT OTHERWISE PROVIDED FOR 222
 
  
 
G02B OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS 2203
 
  
 
E04B GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS 146

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6363667 Passive collimating tubular skylightDec 21, 00Apr 02, 02[E04B]
6111190 Inflatable fresnel lens solar concentrator for space powerMar 18, 98Aug 29, 00[H01L, F24J]
6075200 Stretched Fresnel lens solar concentrator for space powerJun 30, 99Jun 13, 00[H01L, F24J]
6031179 Color-mixing lens for solar concentrator system and methods of manufacture and operation thereofMay 09, 97Feb 29, 00[H01L, G02B]
5505789 Line-focus photovoltaic module using solid optical secondaries for improved radiation resistanceSep 02, 94Apr 09, 96[H01L, G02B]
5498297 Photovoltaic receiverSep 15, 94Mar 12, 96[H01L]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7089694 Sign post assembly and method for the sameExpiredJun 24, 04Aug 15, 06[G09F]
4941415 Municipal waste thermal oxidation systemExpiredNov 02, 89Jul 17, 90[F23G, B09B]
4719904 Solar thermal receiverExpiredJul 22, 86Jan 19, 88[F24J]
4711972 Photovoltaic cell cover for use with a primary optical concentrator in a solar energy collectorExpiredAug 04, 86Dec 08, 87[H01L]
4672949 Solar energy collector having an improved thermal receiverExpiredFeb 13, 85Jun 16, 87[F24J]
4545366 Bi-focussed solar energy concentratorExpiredSep 24, 84Oct 08, 85[F24J]
4323268 Rotary pipe jointExpiredApr 07, 80Apr 06, 82[F16L]
4234215 Rotary pipe jointExpiredJun 05, 78Nov 18, 80[F16L]

Top Inventors for This Owner

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