Inventor · disambiguated record

Bernd Kratzer

Also filed as: KRATZER BERND

2 granted patents·39 citations·filing 1975–1983

62Inventor score

Technology areasC03B G02C

Files withZEISS STIFTUNG2

Top patents by PatentIndex Score

2 records

0175US4619504AOphthalmic lens with a marking and method of producing the markingZEISS STIFTUNG·Filed 1983·Granted Oct 28, 1986·29 cites·11 claims
0245US3966311AMethod of producing photochromic multifocal spectacle lensesZEISS STIFTUNG·Filed 1975·Granted Jun 29, 1976·10 cites·21 claims

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