Patent · US Expired

Unitary stratified composite

US7125470B2 · kind B2 · utility

111Cited by

16References

12Claims

0Family size

Assignee

National Institute for Strategic Technology Acquisition and Commercialization · US

Inventors

Peter A. Graef · Tacoma, US
Colin Elston · Gig Harbor, US
Daniel Bunker · Northampton, US
Fred B. Howard · Olalla, US
Jeffrey D. Mathews · Naperville, US
Shahrokh A. Naieni · Cincinnati, US
Charles E. Miller · Kent, US

Key dates

Filing date	Nov 13, 2002
Grant date	Oct 24, 2006
Priority date	—
Expiry date	Jan 27, 2023

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/249949
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A unitary stratified composite composed of a first stratum and a second stratum integrally connected by a transition zone is disclosed. The first stratum serves as a liquid acquisition stratum that rapidly acquires and then transfers liquid to the second stratum. The second stratum serves to withdraw liquid from the first stratum and further serves as a temporary storage stratum. Methods for forming the unitary stratified composite are also disclosed.

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