Inventor · disambiguated record
Alfred Joekel
Also filed as: JOEKEL ALFRED
4 granted patents·41 citations·filing 1975–1978
75Inventor score
Files withBALCKE DUERR AG4
Top patents by PatentIndex Score
4 records- 0175US4236299AMethod and device for winding spiral fins onto oval tubingBALCKE DUERR AG·Filed 1978·Granted Dec 2, 1980·16 cites·16 claims
- 0257US4194381ADevice for the cold working of heat exchanger tubing for the attachment of spiral finsBALCKE DUERR AG·Filed 1978·Granted Mar 25, 1980·12 cites·7 claims
- 0355US4103408AMethod for the cold working of heat exchanger tubing for the attachment of spiral finsBALCKE DUERR AG·Filed 1976·Granted Aug 1, 1978·8 cites·6 claims
- 0444US4107832AMethod for winding spiral fins onto oval tubingBALCKE DUERR AG·Filed 1975·Granted Aug 22, 1978·5 cites·6 claims
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