Prosecution Insights
Last updated: October 27, 2026
Application No. 18/097,461

BACILLUS SP. PRODUCING BIOFLOCCULANT AND BIOSURFACTANT AND USE THEREOF

Final Rejection §101§112
Filed
Jan 16, 2023
Priority
Jun 15, 2021 — continuation of PCTCN2021100071
Examiner
DUFFY, PATRICIA ANN
Art Unit
1645
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Zhejiang University
OA Round
2 (Final)
53%
Grant Probability
Moderate
3-4
OA Rounds
0m
Est. Remaining
87%
With Interview

Examiner Intelligence

Grants 53% of resolved cases
53%
Career Allowance Rate
303 granted / 573 resolved
-7.1% vs TC avg
Strong +34% interview lift
Without
With
+33.9%
Interview Lift
resolved cases with interview
Typical timeline
3y 7m
Avg Prosecution
50 currently pending
Career history
636
Total Applications
across all art units

Statute-Specific Performance

§101
7.5%
-32.5% vs TC avg
§103
28.0%
-12.0% vs TC avg
§102
20.5%
-19.5% vs TC avg
§112
39.8%
-0.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 573 resolved cases

Office Action

§101 §112
DETAILED ACTION 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 . RESPONSE TO AMENDMENT The response amendments filed 4-30-2026 have been entered into the record. Claims 1-7 are pending. Claim 1 is under examination. Claims 2-7 remain withdrawn from consideration. The text of Title 35 of the U.S. Code not reiterated herein can be found in the previous office action. Objections/ Rejections Withdrawn The objection to the disclosure because of informalities is withdrawn in view of the amendment thereto. The rejection of claim 1 under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the enablement requirement is withdrawn in view of the translation of the Deposit and the assurances provide at page 7 of the response. The rejection of claim 1 under 35 U.S.C. 102(a)(1) as being clearly anticipated by Feng et al (Chemosphere 302:134870, available online May 7, 2022) is withdrawn in view of the properly filed English translation of PCT/CN2021/100071 filed 6-15-2021. Rejections Maintained Claim 1 stands rejected under 35 U.S.C. 101 because the claimed invention is directed to non-statutory subject matter for reasons made of record in the Office Action mailed 2-2-2026. Applicant’s arguments have been carefully considered but are not persuasive. Applicant argues the properties of the bioflocculant and biosurfactant, however these products are naturally produced by the SS15 bacterium. The wherein clause specifically demonstrates that the bacterium was isolated from nature and that no genetic engineering was used to establish the strain and were utilized in the isolation or production of the biosurfactant/bioflocculant. Applicant argues that the BB15 sp. is “induced” by the process recited. It is unclear what “induced” means in this context as naturally endogenous genes can be induced/activated/repressed by culture conditions, expression of genes naturally present in the bacterium does not provide for a markedly difference from the natural bacterium nor provide for a marked difference The BB15 sp. does not appear to be genetically modified for the induction and production of the biosurfactant and bioflocculants. Applicants argue the characteristics of the bioflocculant and biosurfactant produced by the claimed strain, however, the ability to produce these is inherent to the naturally occurring bacterium. The bacterium per se is not markedly different. The characteristics of the Bacillus sp. SS15 bacterium bioflocculant/biosurfactant or biosurfactant have been identified the mere characterization of the natural bacterium’s properties does not provide evidence of markedly different characteristics of the bacterium per se. Induction is not an external genetic process which renders that bacterium markedly different. Applicant argues the screening for suitable strains provided for the instantly claimed SS15. Applicant argues glucose utilization is induced and screened for, however such glucose utilization is not a markedly different characteristic from other Bacillus species that can also utilize glucose (e.g. Bacillus subtilis) which is a well known characteristic in the Bacillus genus. Additionally, the utilization of olive oil is also not unique as Bacillus strains have been shown to do so (see Fancello et al (Microorganisms 2020; see abstract and introduction). The characteristics are necessarily present in the natural Bacillus sp. SS15 isolated from nature. The process of “induction” does not apparently provide for a marked difference in genetic structure, such as that produced by transformation, transduction or genetic engineering. For the foregoing reasons, the rejection is maintained. New Rejections based on Amendment Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claim 1 is rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. The claim has been amended to insert a process after a wherein clause in a product claim. Therefore, it is unclear what the process is limiting in the product. The claim has not been clearly drafted recite a product by process and as such, the wherein clause is not found to properly limit the product Bacillus sp SS15 claimed. Clarification is requested. Status of Claims Claim 1 stands rejected. Claims 2-7 remain withdrawn from consideration. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). 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 extension fee 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 date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to Patricia Duffy whose telephone number is (571)272-0855. The examiner can normally be reached 8:00 am - 4 pm. 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, Jeffrey Stucker can be reached at 571-272-0911. 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. /Patricia Duffy/Primary Examiner, Art Unit 1645
Read full office action

Prosecution Timeline

Jan 16, 2023
Application Filed
Feb 02, 2026
Non-Final Rejection mailed — §101, §112
Apr 30, 2026
Response Filed
Oct 06, 2026
Final Rejection mailed — §101, §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12767925
CELLULOSIMICROBIUM CELLULANS STRAIN AND USE THEREOF IN STRAW FIELD COMPOSTING
3y 3m to grant Granted Oct 20, 2026
Patent 12721880
METHODS AND COMPOSITIONS FOR TREATING FRAILTY
3y 10m to grant Granted Sep 01, 2026
Patent 11771721
APPLICATIONS OF GENETICALLY ENGINEERED BACTERIA VNP20009-M IN PREPARATION OF DRUGS FOR PREVENTING AND TREATING LUNG CANCER
4y 0m to grant Granted Oct 03, 2023
Patent 11707529
IMMUNOGENIC GLYCOPROTEIN CONJUGATES
3y 3m to grant Granted Jul 25, 2023
Patent 11701384
METHODS AND COMPOSITIONS INVOLVING INTERLEUKIN-6 RECEPTOR ALPHA-BINDING SINGLE CHAIN VARIABLE FRAGMENTS
4y 4m to grant Granted Jul 18, 2023
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

3-4
Expected OA Rounds
53%
Grant Probability
87%
With Interview (+33.9%)
3y 7m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 573 resolved cases by this examiner. Grant probability derived from career allowance rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month