Etching a substrate: processes – Etching to produce porous or perforated article
Reexamination Certificate
2006-07-25
2006-07-25
Ahmed, Shamim (Department: 1765)
Etching a substrate: processes
Etching to produce porous or perforated article
C216S083000, C216S087000, C216S094000, C134S001000, C428S446000, C264S082000, C264S344000
Reexamination Certificate
active
07081208
ABSTRACT:
Methods are provided for making microfilters by subtractive techniques which remove a component or part of a filter material to form pores in the filter material and additive techniques which deposit a filter material onto a porous underlying substrate. All the methods employ a supercritical fluid or mixture which have very high solvency properties and low viscosity and CO2is the preferred supercritical fluid.
REFERENCES:
patent: 4092456 (1978-05-01), Newman et al.
patent: 4196070 (1980-04-01), Chao et al.
patent: 4702836 (1987-10-01), Mutoh et al.
patent: 4832997 (1989-05-01), Balanzat et al.
patent: 4859715 (1989-08-01), Dubrow et al.
patent: 5236602 (1993-08-01), Jackson
patent: 5444097 (1995-08-01), Tkacik
patent: 5665234 (1997-09-01), Dilenge et al.
patent: 5834114 (1998-11-01), Economy et al.
patent: 5985164 (1999-11-01), Chu et al.
patent: 6245698 (2001-06-01), Pope et al.
patent: 6565764 (2003-05-01), Hiraoka et al.
McCullough Kenneth J
Moreau Wayne M
Pope Keith R
Purtell Robert J
Simons John P
Ahmed Shamim
DeLio & Peterson LLC
Jaklitsch Lisa U.
Tomaszewski John J.
LandOfFree
Method to build a microfilter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method to build a microfilter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method to build a microfilter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3611859