Patent · US Active

Support and drainage material, filter, and method of use

US10918976B2 · kind B2 · utility

1Cited by
8References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 24, 2018
Grant dateFeb 16, 2021
Priority date—
Expiry dateApr 20, 2039

Classification

  • Technology area (CPC E)Fixed Constructions
  • CPC primaryE02D31/10
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

Support and drainage materials, filter including the materials, and methods of use are disclosed.

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