IP Library › Patent Application 18259689
Patent Application Utility PCT National Stage
App. No. 18/259,689 · Confirmation No. 6532

REVERSE OSMOSIS FILTRATION SYSTEM

Inventors: Biyong QIU, Yan LIU
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2026-06-04 NOA Notice of Allowance and Fees Due (PTOL-85) 7 View
2026-06-04 SRFW Search information including classification, databases and other search related notes 1 View
2026-06-04 IIFW Issue Information including classification, examiner, name, claim, renumbering, etc. 3 View
2026-06-04 BIB Bibliographic Data Sheet 1 View
2026-06-04 SRNT Examiner's search strategy and results 52 View
2026-04-23 A.NE Response After Final Action — View
2026-04-23 AMSB Amendment Submitted/Entered with Filing of Continued Prosecution Application (CPA)/Request for Continued Examination(RCE) 1 View
2026-04-23 CLM Claims 6 View
2026-04-23 REM Applicant Arguments/Remarks Made in an Amendment 4 View
2026-04-23 RCEX Request for Continued Examination (RCE) 1 View
2026-04-23 N417.PYMT Electronic Fee Payment 2 View
2026-04-23 N417 Electronic Filing System Acknowledgment Receipt 2 View
2026-04-23 WFEE Fee Worksheet (SB06) 1 View
2026-01-28 CTFR Final Rejection 14 View
2026-01-28 SRFW Search information including classification, databases and other search related notes 1 View
2026-01-28 SRNT Examiner's search strategy and results 38 View
2026-01-07 A... Amendment/Request for Reconsideration-After Non-Final Rejection — View
2026-01-07 A... Amendment/Request for Reconsideration-After Non-Final Rejection 1 View
2026-01-07 REM Applicant Arguments/Remarks Made in an Amendment 3 View
2026-01-07 XT/ Extension of Time 1 View
2026-01-07 CLM Claims 5 View
2026-01-07 N417 Electronic Filing System Acknowledgment Receipt 2 View
2026-01-07 N417.PYMT Electronic Fee Payment 2 View
2025-09-08 CTNF Non-Final Rejection 12 View
2025-09-08 892 List of references cited by examiner 1 View
2025-09-08 SRFW Search information including classification, databases and other search related notes 1 View
2025-09-08 1449 List of References cited by applicant and considered by examiner 3 View
2025-09-08 BIB Bibliographic Data Sheet 1 View
2025-09-08 SRNT Examiner's search strategy and results 1 View
2025-09-08 SRNT Examiner's search strategy and results 38 View
2025-07-21 C.AD.PC Change of Address via Patent Center​ 1 View
2025-07-21 MFEE.C.AD.PC Change of Address via ​Patent Center 1 View
2025-05-29 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2025-05-29 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2025-05-29 APP.FILE.REC Filing Receipt 3 View
2025-05-22 PA.. Power of Attorney 1 View
2025-05-22 ADS Application Data Sheet 8 View
2025-05-22 R3.73 Assignee showing of ownership per 37 CFR 3.73 3 View
2025-05-22 N417 Electronic Filing System Acknowledgment Receipt 2 View
2024-02-29 NTC.PUB Notice of Publication 1 View
2023-11-21 APP.FILE.REC Filing Receipt 3 View
2023-11-21 M903 Notice of Designated Office (DO) / Elected Office (EO) Acceptance Mailed 2 View
2023-11-21 WCLM Claims Worksheet (PTO-2022) 1 View
2023-11-21 WFEE Fee Worksheet (SB06) 1 View
2023-11-21 WELCOME.LET Welcome Letter from USPTO Director and Deputy Director 1 View
2023-09-26 FOR Foreign Reference 12 View
2023-09-26 FOR Foreign Reference 6 View
2023-09-26 FOR Foreign Reference 30 View
2023-09-26 FOR Foreign Reference 30 View
2023-09-26 FOR Foreign Reference 7 View
2023-09-26 FOR Foreign Reference 20 View
2023-09-26 IDS Information Disclosure Statement (IDS) Form (SB08) 3 View
2023-09-26 TRAN.LET Transmittal Letter 2 View
2023-09-26 REF.OTHER Other reference-Patent/Application/Search Documents 5 View
2023-09-26 FOR Foreign Reference 8 View
2023-09-26 N417 Electronic Filing System Acknowledgment Receipt 4 View
2023-09-26 FOR Foreign Reference 14 View
2023-09-26 FOR Foreign Reference 7 View
2023-06-28 A.PE Preliminary Amendment — View
2023-06-28 OATH Oath or Declaration filed 2 View
2023-06-28 N417 Electronic Filing System Acknowledgment Receipt 3 View
2023-06-28 ADS Application Data Sheet 8 View
2023-06-28 A.PE Preliminary Amendment 1 View
2023-06-28 SPEC Specification 1 View
2023-06-28 CLM Claims 6 View
2023-06-28 REM Applicant Arguments/Remarks Made in an Amendment 1 View
2023-06-28 TRNA Transmittal of New Application 2 View
2023-06-28 N417.PYMT Electronic Fee Payment 2 View
2023-06-28 PA.. Power of Attorney 1 View
2023-06-28 P.N.101.CONV PCT/RO/101 - Request form for new International Application - Conventional 4 View
2023-06-28 ABST Abstract 2 View
2023-06-28 CLM Claims 6 View
2023-06-28 SPEC Specification 29 View
2023-06-28 DRW Drawings-only black and white line drawings 4 View
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Quick Facts
App. No.
18/259,689
Filed
2023-06-28
Pub. No.
US20240066469A1
Art Unit
1771