VPT Energy Systems

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY 1119

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7612466 System and method for coordinated control and utilization of local storage and generation, with a power gridExpiredJan 28, 08Nov 03, 09[H02J, H02M]
5240407 Process for producing a sturdy refractory metal oxide articleExpiredJun 10, 88Aug 31, 93[F21H, C04B]
5137583 Emission technologyExpiredApr 17, 91Aug 11, 92[H01L, F21H, F23D]
5104312 Mantle technologyExpiredApr 10, 90Apr 14, 92[F21V]
5057162 Thermophotovoltaic technologyExpiredOct 31, 90Oct 15, 91[H01L]
5018963 Pulsating gas powered light sourceExpiredAug 07, 89May 28, 91[F23C]
4976606 Thermophotovoltaic technologyExpiredApr 28, 89Dec 11, 90[F23N]
4975044 Gas mantle technologyExpiredJul 20, 83Dec 04, 90[F21H]
4883619 Refractory metal oxide processesExpiredFeb 24, 86Nov 28, 89[C04B]
4877553 Gas mantle technologyExpiredJun 06, 88Oct 31, 89[F21H]
4826426 Thermophotovoltaic technologyExpiredMar 15, 88May 02, 89[F21H]
4764104 Narrow band thermal emitterExpiredJan 03, 86Aug 16, 88[F21H]
4750943 Thermophotovoltaic systemExpiredOct 27, 86Jun 14, 88[H02N]
4707560 Thermophotovoltaic technologyExpiredDec 19, 86Nov 17, 87[H02N]
4584426 Thermophotovoltaic technologyExpiredJul 31, 84Apr 22, 86[H01L]
4497339 Two-stage pressure regulatorExpiredAug 16, 82Feb 05, 85[F16K]
4496308 Shock mounting for incandescent mantleExpiredAug 16, 82Jan 29, 85[F21H]
4475882 Gas mantle with aspirated pilot lightExpiredAug 16, 82Oct 09, 84[F21H]

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