Assignee
GEFFEN TECH ADVIESBUREAU BV
NL·4 granted patents·81 citations·filing 1978–1979
Top patents by PatentIndex Score
4 records- 0188US4185486ARotatable piercing tools for forming bossed holesGEFFEN TECH ADVIESBUREAU BV·Filed 1978·Granted Jan 29, 1980·27 cites·5 claims
- 0260US4175413AMethods and apparatuses for forming by frictional heat and pressure holes surrounded each by a boss in a metal plate or the wall of a metal tubeGEFFEN TECH ADVIESBUREAU BV·Filed 1978·Granted Nov 27, 1979·16 cites·7 claims
- 0357US4260094AMethod of interconnecting several parts, such as a piece of tubing and a plate, a tube or similar bodyGEFFEN TECH ADVIESBUREAU BV·Filed 1979·Granted Apr 7, 1981·23 cites·3 claims
- 0457US4177659ARotatable piercing tools for forming holes surrounded each by a boss in metal plates or the wall of metal tubesGEFFEN TECH ADVIESBUREAU BV·Filed 1978·Granted Dec 11, 1979·15 cites·6 claims
Join the waitlist — get patent alerts
Get an alert when GEFFEN TECH ADVIESBUREAU BV files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →