Prosecution Insights
Last updated: October 04, 2026
Application No. 18/078,094

DEVICE AND METHOD FOR EXTRACTING BIOMOLECULES

Final Rejection §102
Filed
Dec 09, 2022
Priority
Feb 16, 2022 — TW 111105538
Examiner
PATEL, PRANAV N
Art Unit
1777
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Labturbo Biotech Corporation
OA Round
4 (Final)
69%
Grant Probability
Favorable
5-6
OA Rounds
0m
Est. Remaining
90%
With Interview

Examiner Intelligence

Grants 69% — above average
69%
Career Allowance Rate
455 granted / 662 resolved
+3.7% vs TC avg
Strong +22% interview lift
Without
With
+21.7%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
45 currently pending
Career history
699
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
53.6%
+13.6% vs TC avg
§102
14.1%
-25.9% vs TC avg
§112
27.2%
-12.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 662 resolved cases

Office Action

§102
Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Claim Rejections - 35 USC § 102 The text of those sections of Title 35, U.S. Code not included in this action can be found in a prior Office action. Claim(s) 1 is/are rejected under 35 U.S.C. 102(a)(2) as being anticipated by Nogami et al. (US 2015/0231536). Regarding claim 1, Nogami teaches a device (refer fig. 1) (the limitation “for extracting biomolecules” is intended use limitation without imparting additional structure to the filter device), comprising: a membrane tube (101), comprising an upper portion (refer upper portion having cap 103) and a lower portion (refer lower portion having membrane 102), the upper portion having an upper opening (a cap is provided in/on the opening), the lower portion accommodating a permeable membrane (102), and having a lower opening (membrane 102 is provided at the opening); and a container (105), comprising an upper portion (through which membrane tube 101 is inserted) and a lower portion (105B), the upper portion having an opening configured to receive the membrane tube (refer fig. 1), and the lower portion of the container having a closed end (refer 105B); wherein the membrane tube and the container are configured such that when the membrane tube is pushed into the opening of the upper portion of the container, and interface between the membrane tube and the container is liquid-tight, such that liquid in the container does not leak through the interface but flows through the opening of the membrane tube and the permeable membrane and enters the membrane tube (refer circumferential seal 104 providing seal between tube 101 and container 105, refer [0069]-[0074]. The liquid tight seal is a part of the membrane tube). Response to Arguments Applicant's arguments filed 06/10/2026 have been fully considered but they are not persuasive. Regarding rejection of claim 1 under 35 USC 102 as being anticipated by Nogami et al. (US 2015/0231536), applicant argued: PNG media_image1.png 592 666 media_image1.png Greyscale This is not found to be persuasive because claim recites “wherein the membrane tube and the container are configured such that an annular liquid-tight seal is formed by direct circumferential contact between an outer circumferential surface of the membrane tube and an inner circumferential surface of the container along a portion of an axial length of the membrane tube upon insertion”. Claim doesn’t exclude a circumferential seal similar to what is disclosed by Nogami. Although the claims are interpreted in light of the specification, limitations from the specification are not read into the claims. See In re Van Geuns, 988 F.2d 1181, 26 USPQ2d 1057 (Fed. Cir. 1993). The circumferential seal 104 of Nogami is a part of the membrane tube that gets pushed into the container, and therefore meets the claimed limitation. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. US 3661265 (Greenspan) teaches a device for separation of serum or plasma from the formed elements of blood, the serum or plasma is physically isolated from the precipitated formed elements by inserting a plug into the collection tube. US 3969250 (Farr) teaches a device for filtering, isolating, containing, and storing fluid specimens, the device includes a filter means for removing particulates, a membrane valve for isolating the filtrate, a releasable piston ring which permits telescoping of the assembly, and a plunger tube which serves as a simple and/or storage vessel. THIS ACTION IS MADE FINAL. Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to PRANAV PATEL whose telephone number is (571)272-5142. The examiner can normally be reached M-F 6AM-4PM. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Bobby Ramdhanie can be reached at (571) 270-3240. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /PRANAV N PATEL/Primary Examiner, Art Unit 1779
Read full office action

Prosecution Timeline

Show 1 earlier event
Jul 11, 2025
Non-Final Rejection mailed — §102
Oct 07, 2025
Response Filed
Jan 05, 2026
Final Rejection mailed — §102
Mar 13, 2026
Request for Continued Examination
Mar 17, 2026
Response after Non-Final Action
Mar 25, 2026
Non-Final Rejection mailed — §102
Jun 10, 2026
Response Filed
Aug 26, 2026
Final Rejection mailed — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12746513
VESSEL, SYSTEM, AND ASSOCIATED METHOD FOR PRODUCT CONCENTRATION
3y 10m to grant Granted Sep 29, 2026
Patent 12741236
HIGH-PERFORMANCE FABRIC FOR WATER/DIESEL SEPARATING FILTERS
5y 5m to grant Granted Sep 22, 2026
Patent 12729140
ENHANCED FOAM FRACTIONATION OF OIL PHASE FROM AQUEOUS/OIL MIXED PHASE VIA INCREASED VISCOELASTICITY
3y 2m to grant Granted Sep 08, 2026
Patent 12722119
APPARATUS AND METHOD FOR LIQUID TREATMENT BY FORWARD OSMOSIS
4y 0m to grant Granted Sep 01, 2026
Patent 12708867
FILTER APPARATUS WITH VENTED CORE, ELECTROSTATIC DISCHARGE MITIGATION, OR BOTH
4y 9m to grant Granted Aug 18, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

5-6
Expected OA Rounds
69%
Grant Probability
90%
With Interview (+21.7%)
2y 11m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 662 resolved cases by this examiner. Grant probability derived from career allowance rate.

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