Individual holder
DROSTHOLM F H
10 granted patents·222 citations·filing 1971–1977
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
10 records- 0190US4164537ABrick press and associated equipment for making bricksDROSTHOLM F H·Filed 1977·Granted Aug 14, 1979·50 cites·3 claims
- 0286US4050865ABrick press and associated equipment for making bricksDROSTHOLM F H·Filed 1976·Granted Sep 27, 1977·37 cites·8 claims
- 0385US4081302AMethod for making tubular resin elements such as pipesDROSTHOLM F H·Filed 1976·Granted Mar 28, 1978·46 cites·14 claims
- 0464US4035128ABrick press and associated equipment for making bricksDROSTHOLM F H·Filed 1974·Granted Jul 12, 1977·22 cites·23 claims
- 0562US4011354AMethod and apparatus for making tubular resin elements such as pipesDROSTHOLM F H·Filed 1972·Granted Mar 8, 1977·15 cites·11 claims
- 0661US3979250AApparatus for making continuous lengths of resin tubesDROSTHOLM F H·Filed 1971·Granted Sep 7, 1976·19 cites·5 claims
- 0755US3943224AMethod and apparatus for making continuous lengths of resin tubesDROSTHOLM F H·Filed 1972·Granted Mar 9, 1976·16 cites·6 claims
- 0838US4082597AMethod and apparatus for making continuous lengths of resin tubesDROSTHOLM F H·Filed 1976·Granted Apr 4, 1978·7 cites·5 claims
- 0932US4048276AStructural building components and method for production on the basis of lateriteDROSTHOLM F H·Filed 1975·Granted Sep 13, 1977·7 cites·25 claims
- 1021US4022669AEquipment for cleaning solventsDROSTHOLM F H·Filed 1975·Granted May 10, 1977·3 cites·6 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →