Alexei I. Prikhna

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Kiev, SU

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Patents Grantslast 30 patents

Information Patent Grant
Method of producing cubic boron nitride
- Patent number 4,349,517
- Issue date Sep 14, 1982
- Vladislav S. Lysanov
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Polycrystalline superhard material and method of producing thereof
- Patent number 4,220,677
- Issue date Sep 2, 1980
- Institut Sverkhtverdykh Materialov Akademii Nauk Ukrainskoi SSR
- Dmitry V. Fedoseev
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Polycrystalline superhard material and method of producing thereof
- Patent number 4,148,964
- Issue date Apr 10, 1979
- Dmitry V. Fedoseev
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Polycrystalline diamond member and method of preparing same
- Patent number 4,104,441
- Issue date Aug 1, 1978
- Institut Sverkhtverdykh Materialov SSR
- Dmitry Valerianovich Fedoseev
- B24 - GRINDING POLISHING