Inventor · disambiguated record
Ivan D. Enchev
Also filed as: ENCHEV IVAN · ENCHEV IVAN D · ENCHEV IVAN DIMITROV
5 granted patents·1 pending application·27 citations·filing 1975–2012
76Inventor score
Files withINST TZVETNA METALURGIA2NIPKI TZVETNA METALURGIA2ENCHEV IVAN1INST OF CHEMICAL ENGINEERING A1
Top patents by PatentIndex Score
6 records- 0136US4264405AApparatus for the mechanical separation of cathode metal from a matrixINST TZVETNA METALURGIA·Filed 1980·Granted Apr 28, 1981·9 cites·4 claims
- 0234US4966624AMethod and apparatus for electric refining of leadINST TZVETNA METALURGIA·Filed 1989·Granted Oct 30, 1990·5 cites·2 claims
- 0332US4024035AMethod for electric extraction of non-ferrous metals from their solutionsNIPKI TZVETNA METALURGIA·Filed 1975·Granted May 17, 1977·6 cites·2 claims
- 0432US2013319877A1Method and device for zinc electrowinning from sulfate solutionsENCHEV IVAN·Filed 2012·Application pending·0 cites
- 0522US5624653AMethod for producing sulphur trioxideINST OF CHEMICAL ENGINEERING A·Filed 1995·Granted Apr 29, 1997·6 cites·8 claims
- 0619US4105527AElectric system for electric extraction of non-ferrous metals from their solutionsNIPKI TZVETNA METALURGIA·Filed 1976·Granted Aug 8, 1978·1 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →