Inventor · disambiguated record
Konstantin Ledjeff
Also filed as: LEDJEFF KONSTANTIN
18 granted patents·1,190 citations·filing 1981–1997
96Inventor score
Top patents by PatentIndex Score
18 records- 0198US5438082APolymer electrolyte membrane, and process for the production thereofHOECHST AG·Filed 1993·Granted Aug 1, 1995·199 cites·11 claims
- 0295US5561202APolymer electrolyte membrane, and process for the production thereofHOECHST AG·Filed 1995·Granted Oct 1, 1996·106 cites·11 claims
- 0394US5861221ABattery shaped as a membrane strip containing several cellsFRAUNHOFER GES FORSCHUNG·Filed 1994·Granted Jan 19, 1999·128 cites·19 claims
- 0492US5741408APolymer electrolyte membrane for use in fuel cells and electrolysis cellsHOECHST AG·Filed 1995·Granted Apr 21, 1998·80 cites·4 claims
- 0591US5258241ARebalance cell for a Cr/Fe redox storage systemSIEMENS AG·Filed 1989·Granted Nov 2, 1993·83 cites·9 claims
- 0689US5925477AAssembly of single cells to form a diaphragm electrode unitFRAUNHOFER GES FORSCHUNG·Filed 1996·Granted Jul 20, 1999·99 cites·22 claims
- 0789US5863672APolymer electrolyte membrane fuel cellFRAUNHOFER GES FORSCHUNG·Filed 1995·Granted Jan 26, 1999·99 cites·18 claims
- 0888US6214488B1Polymer electrolyte membrane and process for the production thereofHOECHST AG·Filed 1997·Granted Apr 10, 2001·55 cites·8 claims
- 0987US5723086AElectrode membraneFRAUNHOFER GES FORSCHUNG·Filed 1993·Granted Mar 3, 1998·51 cites·32 claims
- 1084US5952118APEM fuel cell with structured platesFRAUNHOFER GES FORSCHUNG·Filed 1995·Granted Sep 14, 1999·79 cites·24 claims
- 1182US5810577ACatalytic burnerFRAUNHOFER GES FORSCHUNG·Filed 1994·Granted Sep 22, 1998·42 cites·15 claims
- 1272US5316643AApparatus for the storage and conversion of energyFRAUNHOFER GES FORSCHUNG·Filed 1992·Granted May 31, 1994·55 cites·8 claims
- 1367US5733678APolymer fuel cellFRAUNHOFER GES FORSCHUNG·Filed 1994·Granted Mar 31, 1998·38 cites·20 claims
- 1460US5464006AWater heaterFRAUNHOFER GES FORSCHUNG·Filed 1993·Granted Nov 7, 1995·21 cites·12 claims
- 1560US4394423AClosure device for lead-acid batteriesLEDJEFF KONSTANTIN·Filed 1981·Granted Jul 19, 1983·18 cites·4 claims
- 1657US4497880ARecombination device for storage batteriesUS ENERGY·Filed 1983·Granted Feb 5, 1985·15 cites·5 claims
- 1756US5709174AHot water heaterFRAUNHOFER GES FORSCHUNG·Filed 1994·Granted Jan 20, 1998·18 cites·12 claims
- 1832US4378413ARecombination system for storage batteriesVARTA BATTERIE·Filed 1981·Granted Mar 29, 1983·4 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →