Inventor · disambiguated record
Ludwig Bertele
Also filed as: BERTELE LUDWIG
4 granted patents·95 citations·filing 1975–1992
76Inventor score
Top patents by PatentIndex Score
4 records- 0180US5231882ATesting device for performing four-point fatigue strength tests under alternating bending stressesTELEFUNKEN SYSTEMTECHNIK·Filed 1992·Granted Aug 3, 1993·80 cites·15 claims
- 0232US4013349AWide-angle objectiveWILD HEERBRUGG AG·Filed 1975·Granted Mar 22, 1977·5 cites·2 claims
- 0329US4099844AVariable focal lens having a divergent front elementBERTELE LUDWIG·Filed 1976·Granted Jul 11, 1978·5 cites·6 claims
- 0429US4018510AVarifocal objective containing movable lens component of positive refractivityBERTELE LUDWIG·Filed 1975·Granted Apr 19, 1977·5 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →