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Last Updated: March 28, 2024

Details for Patent: 7,316,067


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Summary for Patent: 7,316,067
Title:Forming a perforate membrane by laser drilling and a subsequent electro-polishing step
Abstract: A method of forming a perforate membrane (1) is disclosed for use in a liquid transport device. The membrane has at least plural nozzles (10) formed therethrough. Each of those nozzles has a throat portion (12) opening at opposite end through opposite surface (2') of the perforate membrane and a smoothly curved outwardly diverging portion (11) extending from the first end of the throat portion to the first surface (2) of the perforate membrane. Laser energy is applied selectively to the first surface (2) of the membrane in the form of a pulsed, focused beam to form the nozzles (10) and thereafter the first surface (2) of the membrane and the surface of the diverging portion (11) of the nozzles (10) are electro-polished to remove surface imperfections. The electro-polishing is controlled so as to remove material from the surface of the diverging portion (11) of the nozzles to a depth less than the length of the throat portion (12).
Inventor(s): Blakey; David Mark (Herts, GB)
Assignee: The Technology Partnership (Melbourn Royston, Hertz, GB)
Application Number:10/489,327
Patent Claim Types:
see list of patent claims
Use; Device;

Drugs Protected by US Patent 7,316,067

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

Foreign Priority and PCT Information for Patent: 7,316,067

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
01308106Sep 24, 2001
PCT Information
PCT FiledSeptember 06, 2002PCT Application Number:PCT/GB02/04093
PCT Publication Date:April 03, 2003PCT Publication Number: WO03/026832

International Family Members for US Patent 7,316,067

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Germany 60231995 ⤷  Try a Trial
European Patent Office 1295647 ⤷  Try a Trial
European Patent Office 1429888 ⤷  Try a Trial
Japan 2005503266 ⤷  Try a Trial
Japan 4176016 ⤷  Try a Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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