Inventor · disambiguated record
Petrus Marinus Acda
Also filed as: ACDA PETRUS M · ACDA PETRUS MARINUS
12 granted patents·165 citations·filing 1974–1979
92Inventor score
Files withPOLVA NEDERLAND BV12
Top patents by PatentIndex Score
12 records- 0172US3998578AMandril for shaping a bell end on a pipe of thermo-plastic materialPOLVA NEDERLAND BV·Filed 1975·Granted Dec 21, 1976·27 cites·6 claims
- 0264US4457886AProcess for the production of coupling pieces from a thermoplastic, and device for carrying out this processPOLVA NEDERLAND BV·Filed 1979·Granted Jul 3, 1984·21 cites·4 claims
- 0358US4018464ATapping teePOLVA NEDERLAND BV·Filed 1975·Granted Apr 19, 1977·21 cites·2 claims
- 0457US4059291ABranch connectionPOLVA NEDERLAND BV·Filed 1977·Granted Nov 22, 1977·20 cites·6 claims
- 0556US4040889AApparatus for manufacturing an electrowelding component of synthetic material comprising a resistance elementPOLVA NEDERLAND BV·Filed 1976·Granted Aug 9, 1977·15 cites·1 claims
- 0653US4065243AApparatus for forming a thickened bell end on thermoplastic pipePOLVA NEDERLAND BV·Filed 1976·Granted Dec 27, 1977·18 cites·4 claims
- 0752US4394343AProcess for the forming of coupling pieces from a thermoplasticPOLVA NEDERLAND BV·Filed 1979·Granted Jul 19, 1983·14 cites·3 claims
- 0842US4006757APipe bell end having a thickened portion and apparatus for forming the bell endPOLVA NEDERLAND BV·Filed 1975·Granted Feb 8, 1977·9 cites·5 claims
- 0941US4097070AHigh-strength pipe couplingPOLVA NEDERLAND BV·Filed 1976·Granted Jun 27, 1978·10 cites·5 claims
- 1040US3989440ADevice for shaping a bell end to a tubePOLVA NEDERLAND BV·Filed 1974·Granted Nov 2, 1976·6 cites·4 claims
- 1131US4034057AMethod of shaping a bell end on thermoplastic pipePOLVA NEDERLAND BV·Filed 1976·Granted Jul 5, 1977·3 cites·2 claims
- 1229US4070042AHigh-strength coupling of plastic pipe to metal pipePOLVA NEDERLAND BV·Filed 1976·Granted Jan 24, 1978·1 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →