Patent · US Active

High strength porous cement-based materials

US11939729B2 · kind B2 · utility

0Cited by
4References
19Claims
0Family size

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Inventors

Key dates

Filing dateNov 13, 2019
Grant dateMar 26, 2024
Priority date—
Expiry dateJan 30, 2040

Classification

  • Technology area (CPC E)Fixed Constructions
  • CPC primaryE01C2201/20
  • WIPO fieldCivil engineering
  • WIPO sectorOther fields

Abstract

Method of forming a cement-based material pad (3) comprising a plurality of drainage holes and forms for use in such a method.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.