Peter Barend Hopperus-Buma

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Auckland, NZ

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Patents Grantslast 30 patents

Information Patent Grant
Tough, water-permeable paver
- Patent number 9,068,299
- Issue date Jun 30, 2015
- Peter Barend Hopperus-Buma
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES

Patents Applicationslast 30 patents

Information Patent Application
TOUGH, WATER-PERMEABLE PAVER
- Publication number 20120171465
- Publication date Jul 5, 2012
- Peter Barend Hopperus-Buma
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL