Inventor · disambiguated record
Alexander Y. Valchev
Also filed as: SAVOV PETER H · VALCHEV ALEXANDER · VALCHEV ALEXANDER Y · VALCHEV ALEXANDER YORDANOV
9 granted patents·80 citations·filing 1976–1987
87Inventor score
Files withDSO CHERNA METALURGIA4DSO CHERNA METALURGIA BG1975021DSO CHERNA METALURGIA BG1975041DSO CHERNA METALURGIA BG1976031ISO METALURGKOMPLEKT1
Top patents by PatentIndex Score
9 records- 0192US4200452AMethod for the refining of iron-based meltsDSO CHERNA METALURGIA·Filed 1978·Granted Apr 29, 1980·24 cites·3 claims
- 0283US4246023AMethod and apparatus for the refining of iron-based meltsDSO CHERNA METALURGIA·Filed 1979·Granted Jan 20, 1981·18 cites·14 claims
- 0375US4462878AMethod of treating and refining liquid metal alloys by direct current electric arc heatingISO METALURGKOMPLEKT·Filed 1982·Granted Jul 31, 1984·15 cites·6 claims
- 0438US4226207AApparatus for applying protective coatings to graphite bodiesDSO CHERNA METALURGIA·Filed 1978·Granted Oct 7, 1980·7 cites·11 claims
- 0530US4110547AMethod of steelmaking with direct currentDSO CHERNA METALURGIA BG197504·Filed 1976·Granted Aug 29, 1978·4 cites·3 claims
- 0629US4259919AApparatus for coating graphite electrodesDSO CHERNA METALURGIA·Filed 1979·Granted Apr 7, 1981·4 cites·4 claims
- 0724US4101186AContact clamp for graphite electrodesDSO CHERNA METALURGIA BG197603·Filed 1977·Granted Jul 18, 1978·3 cites·4 claims
- 0821US4783790ADirect-current arc furnace for steelmakingNPP ELEKTROTERMIA·Filed 1987·Granted Nov 8, 1988·1 cites·7 claims
- 0915US4077357AApparatus for the application of a protective coating to a graphite electrodeDSO CHERNA METALURGIA BG197502·Filed 1976·Granted Mar 7, 1978·4 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →