Inventor · disambiguated record

Berthold Frank

Also filed as: FRANK BERTHOLD

2 granted patents·66 citations·filing 1975–1982

66Inventor score

Technology areasC03B H01J

Files withPHILIPS CORP2

Top patents by PatentIndex Score

2 records

0187US3979196AMethod for the hot-working of glassPHILIPS CORP·Filed 1975·Granted Sep 7, 1976·36 cites·6 claims
0285US4533852AMethod of manufacturing a thermionic cathode and thermionic cathode manufactured by means of said methodPHILIPS CORP·Filed 1982·Granted Aug 6, 1985·30 cites·30 claims

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