Patent SG-11201407448V-A (SG)
Title: Low resistance microfabricated filter
Inventor: KANT RISHI
IPC: B01D61/14
Filed: 2013-05-16
Abstract: (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 21 November 2013 (21.11.2013) WIPOIPCT (10) International Publication Number WO 2013/173631 A2 (51) International Patent Classification: B01D 39/08 (2006.01) (21) International Application Number: (22) International Filing Date: (25) Filing Language: (26) Publication Language: PCT/US2013/041428 16 May 2013 (16.05.2013) English English (30) Priority Data: 61/647,939 16 May 2012 (16.05.2012) US (71) Applicant: REGENTS OF THE UNIVERSITY OF CALIFORNIA [US/US]; Office of Technology Transfer, 1111 Franklin Street, 12th Floor, Oakland, California 94607-5200 (US). (72) Inventors: KANT, Rishi; 2151 Carlmont Drive, Unit 306, Belmont, California 94002 (US). ROY, Shuvo; 1452 5th Avenue, San Francisco, California 94122-3807 (US). CHUI, Benjamin; 737 Dartshire Way, Sunnyvale, Califor­ nia 94087 (US). GOLDMAN, Kenneth G.; 26988 Valeside Lane, Olmsted Falls, Ohio 44138 (US). (74) Agents: MCCORMICK, Daniel K. et al.; KILPATRICK TOWNSEND & STOCKTON LLP, Two Embarcadero Center, Eighth Floor, San Francisco, CA 94111 (US). (81) Designated States (unless otherwise indicated, for every kind of national protection available)'. AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every kind of regional protection available)'. ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG). Published: — without international search report and to be republished upon receipt of that report (Rule 48.2(g)) (54) Title: LOW RESISTANCE MICROFABRICATED FILTER 310 ,327 SILK iiiaiiiaiiiiiii CJ m i> i-H cn i-H o CJ O £ Fig. 3F (57) Abstract: The present technology provides micro fabricated filtration devices, methods of making such devices, and uses for mi- crofabricated filtration devices. The devices may allow diffusion to occur between two fluids with improved transport resistance characteristics as compared to conventional filtration devices. The devices may include a compound structure that includes porous a membrane overlying a support structure. The support structure may define cavity and a a plurality of recesses formed in way a that can allow modified convective flow of first a fluid to provide improved diffusive transport between the first fluid and a second fluid through the membrane.