Prosecution Insights
Last updated: September 17, 2026
Application No. 18/709,400

SUSTAINABLE LUBRICANTS

Non-Final OA §103
Filed
May 10, 2024
Priority
Nov 10, 2021 — provisional 63/277,989 +6 more
Examiner
OLADAPO, TAIWO
Art Unit
1771
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Evolve Lubricants Inc.
OA Round
3 (Non-Final)
53%
Grant Probability
Moderate
3-4
OA Rounds
9m
Est. Remaining
65%
With Interview

Examiner Intelligence

Grants 53% of resolved cases
53%
Career Allowance Rate
620 granted / 1167 resolved
-11.9% vs TC avg
Moderate +12% lift
Without
With
+11.8%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
60 currently pending
Career history
1248
Total Applications
across all art units

Statute-Specific Performance

§101
2.1%
-37.9% vs TC avg
§103
55.1%
+15.1% vs TC avg
§102
14.4%
-25.6% vs TC avg
§112
16.4%
-23.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1167 resolved cases

Office Action

§103
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 . The amendment dated 06/23/2026 has been considered and entered. The response has been considered but was not found to be persuasive over Fisher et al. (US 7,592,295). Therefore, the previous rejections are maintained. The rejections under 112b are overcome by the amendments and are thus withdrawn. Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. This application currently names joint inventors. In considering patentability of the claims the examiner presumes that the subject matter of the various claims was commonly owned as of the effective filing date of the claimed invention(s) absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and effective filing dates of each claim that was not commonly owned as of the effective filing date of the later invention in order for the examiner to consider the applicability of 35 U.S.C. 102(b)(2)(C) for any potential 35 U.S.C. 102(a)(2) prior art against the later invention. Claims 1, 3, 4, 6, 12, 14, 15, 18, 21, 23, 24, 27, 33, 36, 38, 40, 45 – 47 are rejected under 35 U.S.C. 103 as being unpatentable over Fisher et al. (US 7,592,295) In regards to claims 1, 3, 4, Fisher teaches farnesene dimers and/or farnesene dimers and compositions (title). The farnesene is b-farnesene and which is/are C15 olefin monomers, dimers (oligomers) etc. (column 8 lines 29 – 49). The structure in claim 4, namely, (6E)-7,11-dimethyl-3-methylene-1, 6, 10-dodecatriene is b-farnesene, which Fisher teaches. Farnesene which can be a or b-farnesene, when it is hydrogenated, it becomes farnesane according to Fisher. Thus, Fisher teaches hydrocarbon base oil of the claims. The farnesene compounds/derivatives (i.e., farnesane) can be present in combinations and each is present in the composition in amounts from about 0.1 to 99.9% which provides the limitation a) and the limitation b) of the claims (column 5 lines 1 – 41; column 8 lines 41 – 49). The farnesane which are saturated hydrocarbon includes combinations of IIA and IIB at 40 to 99% in the composition, and IIC and IID at 1 to 12% of the composition, and thus provides combinations of the saturated compounds as claimed. The composition can comprise known lubricant additives such as antiwear agents, detergents, stability improvers (stabilizers), viscosity index improvers, pour point depressants, antioxidants etc., as claimed (column 18 lines 48 – 56; column 30 lines 10 – 50). In one embodiment, the pour point depressants are polymethacrylates (which are known to be multifunctional viscosity index improvers) that can be present at from 0.01 to about 10% according to the limitation c) of the claims (column 27 lines 45 to column 28 lines 10). In regards to claims 6, 12, Fisher teaches the composition having the farnesene in amounts of 0.1 to 99.5% with a balance of additives which overlaps the claimed range. For instance, each additive can be from 0.001% to about 20% (column 23 lines 23 – 33). The additive can be ATF having viscosity index improvers present at from about 0.5% to 1.5%, antiwear present at from about 0.1 to about 0.4%, etc., in the composition (column 31 lines 29 – 40). In regards to claim 14, Fisher teaches the composition can comprise calcium sulfonate etc., as additives which would be expected to provide the function of antiwear as claimed (column 23 lines 60 – 66). Antiwear/EP compounds also include metal dithiocarbamates (column 25 lines 12 – 19). While molybdenum dithiocarbamates are not particularly recited, they are ubiquitously known as metal dithiocarbamates which are oil soluble dithiocarbamates for use as additives in oils and which would have been obvious. In regards to claim 15, Fisher teaches the composition having pour point depressant (PPD) additives in amounts overlapping the claimed range as previously stated. For instance, the ppd’s are present at from 0.01 to 10% in one embodiment (column 28 lines 1 – 10). In regards to claim 17, Fisher teaches the composition comprising anti-foaming agents at amounts of from 0.01 to about 5% in the composition (column 28 lines 11 – 32). In regards to claims 21, 23, Fisher teaches the composition which can comprise aminic antioxidants such as alkylated diphenylamine, phenyl alpha naphthylamine etc., at amounts of from about 0.01 to 10% by weight of the composition (column 29 lines 58 – column 30 lines 8). In regards to claim 24, Fisher teaches the composition which can comprise known additives and does not require the presence of antimicrobials and thus obviates the claimed limitation. In regards to claim 27, Fisher teaches the composition having additives in the claimed amounts. Additives meet the limitations of inhibitors as claimed. For instance, antioxidants are oxidation inhibitors which are present in amounts overlapping the claimed range as previously stated. In regards to claim 33, Fisher teaches the composition which can comprise additives in amounts overlapping the claimed range as previously stated. The additives can include one or more such as storage stabilizers, antioxidants etc. (column 21 lines 57 – 63). Antioxidants also meets the limitation of stabilizers. In regards to claims 36, 38, 40, Fisher teaches the composition can comprise base oil at from 1 to 20% (column 19 lines 6 – 14). The oils can comprise synthetic oils such as polyalphaolefins, esters (i.e., esterification products) etc. (column 19 lines 15 – 27). In regards to claim 45, Fisher teaches the composition which can comprise farnesene oligomers such as dimers as previously stated. In regards to claims 46, 47, Fisher teaches the composition having the claimed oil and additives as previously stated. The composition can comprise a detergent at amounts of from 0.001 to 5% (column 24 lines 2 – 15). The composition can comprise friction modifiers at from 0.01 to 10% (column 27 lines 12 – 20). The composition can comprise pour point depressants such as polymethacrylates which also provides the limitation of viscosity index improvers at from 0.01 to about 10% (column 28 lines 1 – 5). In one embodiment the composition can comprise viscosity index improvers at from 0.5 to 1.5% (column 31 lines 29 – 40). Response to Arguments Applicant's arguments have been fully considered but they are not persuasive. Applicant argues Fisher fails to teach combinations of saturated hydrocarbon base oils as claimed. The argument is not persuasive. Fisher teaches combinations of farnesane compounds IIA and IIB at 40 to 99% and compounds IIC and IID at 1 to 12% as discussed in the rejections above. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to TAIWO OLADAPO whose telephone number is (571)270-3723. The examiner can normally be reached 8-5pm. 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, Prem Singh can be reached at 571-272-6381. 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. /TAIWO OLADAPO/Primary Examiner, Art Unit 1771
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Prosecution Timeline

May 10, 2024
Application Filed
Apr 04, 2025
Non-Final Rejection mailed — §103
Oct 03, 2025
Response Filed
Dec 23, 2025
Final Rejection mailed — §103
Jun 23, 2026
Request for Continued Examination
Jun 25, 2026
Response after Non-Final Action
Jul 14, 2026
Non-Final Rejection mailed — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12723213
LUBRICATING OIL COMPOSITIONS WITH IMPROVED OXIDATIVE PERFORMANCE COMPRISING ALKYLATED DIPHENYLAMINE ANTIOXIDANT AND CARBOXYLATE DETERGENTS
4y 0m to grant Granted Sep 01, 2026
Patent 12716001
Aromatic Organic Solvent Composition and Paint Composition Comprising the Same
3y 2m to grant Granted Aug 25, 2026
Patent 12692456
LUBRICANT COMPOSITION
3y 10m to grant Granted Jul 28, 2026
Patent 12692162
DISPERSIONS CONTAINING GRAPHENIC CARBON NANOPARTICLES AND DISPERSANT RESINS
1y 10m to grant Granted Jul 28, 2026
Patent 12686832
ASHLESS IONIC LIQUID
1y 7m to grant Granted Jul 21, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
53%
Grant Probability
65%
With Interview (+11.8%)
3y 1m (~9m remaining)
Median Time to Grant
High
PTA Risk
Based on 1167 resolved cases by this examiner. Grant probability derived from career allowance rate.

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