National Power PLC
Patent Owner
Stats
- 2 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Jul 11, 2000 most recent publication
Details
- 2 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 520 Total Citation Count
- May 29, 1979 Earliest Filing
- 13 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
Rank in Class
Top Patents (by citation)
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Recent Publications
- No Recent Publications to Display
Recent Patents
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
5785912 Method for the fabrication of an electrochemical cell having long term chemical stabilityExpiredDec 03, 96Jul 28, 98[B29C, H01M]
5705534 Method for the preparation of cation exchange membranes doped with insoluble metal saltsExpiredJun 04, 96Jan 06, 98[C25B]
5626731 Cation exchange membranes and method for the preparation of such membranesExpiredApr 07, 95May 06, 97[C25B]
5612148 Process for energy storage and/or power delivery with means for restoring electrolyte balanceExpiredApr 13, 94Mar 18, 97[H01M]
5545492 Electrochemical apparatus for power delivery utilizing an air electrodeExpiredSep 29, 93Aug 13, 96[H01M]
5496659 Electrochemical apparatus for energy storage and/or power delivery comprising multi-compartment cellsExpiredSep 29, 93Mar 05, 96[H01M]
5422197 Electrochemical energy storage and power delivery process utilizing iron-sulfur coupleExpiredSep 29, 93Jun 06, 95[H01M]
5285162 Galvanic current measuring method and apparatus for monitoring build-up of biological deposits on surfaces of dissimilar metal electrodes immersed in waterExpiredJun 24, 91Feb 08, 94[C12M, G01N]
4485154 Electrically rechargeable anionically active reduction-oxidation electrical storage-supply systemExpiredSep 08, 81Nov 27, 84[H01M]
4215182 Conversion of solar energy to chemical and electrical energyExpiredMay 29, 79Jul 29, 80[H01M]
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