Prosecution Insights
Last updated: October 25, 2026
Application No. 18/268,216

Facile Purification of Cannabinoid Acids

Non-Final OA §102§112
Filed
Jun 17, 2023
Priority
Dec 18, 2020 — provisional 63/127,466 +2 more
Examiner
SHAMEEM, GOLAM M
Art Unit
1621
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
None recorded (individual inventor: Matthew Havis Finley)
OA Round
1 (Non-Final)
87%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 87% — above average
87%
Career Allowance Rate
779 granted / 898 resolved
+26.7% vs TC avg
Strong +16% interview lift
Without
With
+15.9%
Interview Lift
resolved cases with interview
Fast prosecutor
1y 10m
Avg Prosecution
34 currently pending
Career history
922
Total Applications
across all art units

Statute-Specific Performance

§101
2.8%
-37.2% vs TC avg
§103
5.1%
-34.9% vs TC avg
§102
18.0%
-22.0% vs TC avg
§112
23.6%
-16.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 898 resolved cases

Office Action

§102 §112
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 . DETAILED ACTION Priority PNG media_image1.png 18 334 media_image1.png Greyscale , is acknowledged. Status of Claims Claims 68-72, 74-82, and 88-93 are currently pending in the application. Information Disclosure Statement Receipt is acknowledged of Information Disclosure Statement (IDS), filed on 10/26/2025, which has been entered in the file. Claim Rejections - 35 USC § 102 The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale or otherwise available to the public before the effective filing date of the claimed invention. (a)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claims 68-72, 74-82 and 88-93 are rejected under 35 U.S.C. § 102(a)(2) as being anticipated by Aizikovich, Alexander (WO 2020/016875, IDS). Applicant claims a Facile purification of cannabinoid acids thereof. Aizikovich, Alexander also discloses an identical process / method of facile purification of cannabinoid acids [including all the reagents, steps and /or reaction conditions, such as, combining the starting material (cannabis extract) and a polar aprotic solvent (e.g., organic solvent acetonitrile) to form a slurry mixture solution and then mixing the solution to obtain a cannabinoid acid precipitate comprising cannabinoid acids in pure forms (having purity higher than 97%)], which anticipates the instantly claimed inventions [WO 2020/016875, see pages 3-4, para 0012, 0013, 0014]. Claim Rejections - 35 USC § 112 The following is a quotation of the first paragraph of 35 U.S.C. 112(a): (a) IN GENERAL.—The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention. The following is a quotation of the first paragraph of pre-AIA 35 U.S.C. 112: The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor of carrying out his invention. Claim 68 is rejected under 35 U.S.C. § 112, first paragraph, as failing to comply with the written description requirement. The claim(s) contains subject matter, which was not described in the specification in such a way as to reasonably convey to one skilled in the relevant art that the inventor(s), at the time the application was filed, had possession of the claimed invention. The expression “cannabinoid acid” [claim 68, line 1, page 2, and all other occurrences] is extremely broad because it is not clear what kind of ‘cannabinoid acid’ the Applicant is intending to encompass with this broad expression [since any ‘cannabinoid acid’ may fall within the broad definition of ‘cannabinoid acid’]. The above expression, which is not described in such a way as to satisfy the statutory requirements within the purview of 35 U.S.C. 112 first paragraph because, the specification does not provide essential description to carry out the invention and thus lacks enablement as well. Therefore, it is suggested that the expression ‘cannabinoid acid’ either be limited to the specific ‘cannabinoid acid’ that actually contemplated in the specification (such as, incorporating the limitations of claim 92 into claim 68) and/or to amend the claims within the context and scope of the claims in order to overcome the rejection. Telephone Inquiry Any inquiry concerning this communication or earlier communications from the examiner should be directed to Golam Shameem, Ph.D. whose telephone number is (571) 272-0706. The examiner can normally be reached on Monday-Thursday from 7:30 AM - 6:00 PM. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Clinton Brooks, Ph.D. can be reached at (571) 270-7682. Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://portal.uspto.gov/external/portal. Should you have questions about access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). Any inquiry of a general nature or relating to the status of this application should be directed to the Group receptionist, whose telephone number is (571) 272-1600. /GOLAM M SHAMEEM/Primary Examiner, Art Unit 1621
Read full office action

Prosecution Timeline

Jun 17, 2023
Application Filed
Jan 09, 2024
Response after Non-Final Action
Apr 07, 2024
Response after Non-Final Action
May 21, 2026
Non-Final Rejection mailed — §102, §112 (current)

Precedent Cases

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

1-2
Expected OA Rounds
87%
Grant Probability
99%
With Interview (+15.9%)
1y 10m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 898 resolved cases by this examiner. Grant probability derived from career allowance rate.

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