Prosecution Insights
Last updated: April 19, 2026
Application No. 18/386,327

GOLD NANO-DELIVERY SYSTEM FOR PAIN AND CANCER THERAPY

Non-Final OA §103§112
Filed
Nov 02, 2023
Examiner
PALLAY, MICHAEL B
Art Unit
1617
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Toronto Poly Clinic Inc.
OA Round
1 (Non-Final)
56%
Grant Probability
Moderate
1-2
OA Rounds
3y 3m
To Grant
91%
With Interview

Examiner Intelligence

Grants 56% of resolved cases
56%
Career Allow Rate
396 granted / 707 resolved
-4.0% vs TC avg
Strong +35% interview lift
Without
With
+35.0%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
59 currently pending
Career history
766
Total Applications
across all art units

Statute-Specific Performance

§101
1.5%
-38.5% vs TC avg
§103
46.2%
+6.2% vs TC avg
§102
13.2%
-26.8% vs TC avg
§112
23.4%
-16.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 707 resolved cases

Office Action

§103 §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 . Priority The later-filed application must be an application for a patent for an invention which is also disclosed in the prior application (the parent or original nonprovisional application or provisional application). The disclosure of the invention in the parent application and in the later-filed application must be sufficient to comply with the requirements of 35 U.S.C. 112(a) or the first paragraph of pre-AIA 35 U.S.C. 112, except for the best mode requirement. See Transco Products, Inc. v. Performance Contracting, Inc., 38 F.3d 551, 32 USPQ2d 1077 (Fed. Cir. 1994). The disclosure of the prior-filed application, Application Nos. 17/509,487, fails to provide adequate support or enablement in the manner provided by 35 U.S.C. 112(a) or pre-AIA 35 U.S.C. 112, first paragraph for one or more claims of this application. Specifically, the prior-filed application fails to provide adequate support or enablement for the following: Claim 1 recites hydrophilic molecules/polymers, but the prior-filed application does not disclose hydrophilic molecules other than polymers, but rather only discloses the more narrow category of hydrophilic polymers (paragraph [11]). Claim 1 recites a mixture of cannabinoid drug molecules, reductant, and hydrophilic molecules/polymers, but the prior-filed application does not disclose such a mixture, but rather discloses polymer added later as an additional layer of capping agent (paragraph [23]). Claim 1 recites attachment by non-covalent interactions of the cannabinoid, reductant, and hydrophilic molecules/polymers, but the prior-filed application does not disclose such broad or generic type of attachment, but rather only discloses charge interaction for polymer coating (paragraph [23]). Claim 1 recites non-covalent interactions of charge interaction, hydrophobic interactions, and hydrogen bonding, but the prior-filed application does not disclose all such interaction species for all of cannabinoid, reductant, and hydrophilic molecules/polymers, but rather only discloses charge interaction for polymer coating (paragraph [23]). Claim 1 recites that the hydrophilic molecules/polymers act as emulsifier, hydrotropic, and chelating agent, but the prior-filed application does not disclose such function of the hydrophilic molecules/polymers. Accordingly, as claim 2 depends upon claim 1, claims 1-2 are not entitled to the benefit of the prior application. 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. Claims 1-2 are 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. Claim 1 recites hydrophilic molecules/polymers, but it is unclear whether the hydrophilic molecules/polymers must be polymers or whether they may be molecules other than polymers. Claim 2 is rejected as depending from rejected claim 1 without remedying such deficiency. Claim 1 recites hydrophobic molecules/polymers, but it is unclear whether the hydrophobic molecules/polymers must be polymers or whether they may be molecules other than polymers. Claim 2 is rejected as depending from rejected claim 1 without remedying such deficiency. Claim 1 recites the limitation "the hydrophobic molecules/polymers" in line 7. There is insufficient antecedent basis for this limitation in the claim. Claim Rejections - 35 USC § 103 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. 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. 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. Claim(s) 1-2 is/are rejected under 35 U.S.C. 103 as being unpatentable over Okamura et al. (WO 2011/052637 A1; published 05 May 2011; citations herein to English machine translation made 07 March 2026) in view of Selvaraj et al. (US 2022/0211630 A1; published 07 July 2022). Regarding claim 1, Okamura et al. discloses a nanocarrier drug delivery colloidal solution (page 4 FIG. 1 description), comprising: a) a gold core in size range of nanometers (FIGS. 1, 2); b) a surface layer comprising a mixture of a cannabinoid drug molecules, reductant, and hydrophilic molecules/polymers (FIG. 2 showing gold core surface with mixture of dendritic molecules with hydrophilic hydroxyl groups, reducing agent, and pyrene in hydrophobic spaces wherein water-insoluble pharmaceuticals are incorporated into the hydrophobic spaces, for drug delivery, as discussed in page 4 FIGS. 1, 2 descriptions), wherein the mixture is attached onto a surface of the gold core by non-covalent interactions, comprising of change interaction, hydrophobic interactions, and hydrogen bonding, wherein the hydrophobic molecules/polymers bind on the surface of the gold core and interact with each other and with the cannabinoid drug molecules which are hydrophobic through charge interaction, hydrophobic interactions, and hydrogen bonding, and act as stabilizer, emulsifier, hydrotropic and chelating agent to make the nanocarrier drug delivery colloidal solution hydrophilic and stable (FIGS. 1, 2; discussed in page 4 FIGS. 1, 2 descriptions). Further regarding claim 1, Okamura et al. does not disclose that the water-insoluble pharmaceuticals are cannabinoid drug molecules as claimed. Further regarding claim 1, Selvaraj et al. discloses nanoparticle formulations of water insoluble pharmaceutical substances (title) wherein cannabidiol is a water-insoluble pharmaceutical agent (paragraph [0030]). Further regarding claim 1, it would have been prima facie obvious to a person of ordinary skill in the art before the effective filing date of the claimed invention to combine the teachings of Okamura et al. and Selvaraj et al. by using the cannabidiol (i.e., CBD, a cannabinoid drug molecule) of Selvaraj et al. as the water-insoluble pharmaceutical agent in the colloidal solution of Okamura et al. as discussed above, with a reasonable expectation of success. A person of ordinary skill in the art before the effective filing date of the claimed invention would have been motivated to do so to use therein a pharmaceutical agent known to be water-insoluble, given that Okamura et al. suggest using a water-insoluble pharmaceutical agent therein, and also given that the selection of a known material based on its suitability for its intended use supports a prima facie obviousness determination per MPEP 2144.07. Conclusion No claims are allowed. Any inquiry concerning this communication or earlier communications from the examiner should be directed to MICHAEL B. PALLAY whose telephone number is (571)270-3473. The examiner can normally be reached Monday through Friday from 8:30 AM to 5:00 PM Eastern Time. 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, Sue Liu can be reached on (571)272-5539. 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. /MICHAEL B. PALLAY/Primary Examiner, Art Unit 1617
Read full office action

Prosecution Timeline

Nov 02, 2023
Application Filed
Mar 07, 2026
Non-Final Rejection — §103, §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12582603
OPHTHALMIC PHARMACEUTICAL COMPOSITION CONTAINING A COMBINATION OF BRINZOLAMIDE AND BRIMONIDINE AND METHOD OF PREPARATION THEREOF
2y 5m to grant Granted Mar 24, 2026
Patent 12577244
HETEROCYCLIC COMPOUND AND HARMFUL ARTHROPOD-CONTROLLING COMPOSITION CONTAINING SAME
2y 5m to grant Granted Mar 17, 2026
Patent 12532883
Powder Compositions Comprising Salts of C4 to C10 Oxocarboxylic Acids and of Unsaturated or Aromatic C6 to C10 Carboxylic Acids
2y 5m to grant Granted Jan 27, 2026
Patent 12533377
PREVENTIVE AND CURATIVE PEROXOMETALLATE BASED COMPOSITION, NOTABLY PHARMACEUTICAL COMPOSITION
2y 5m to grant Granted Jan 27, 2026
Patent 12527752
COMPOSITION BASED ON GELLAN GUM AND PHENYLEPHRINE, PRODUCTION METHOD AND USE AS AN OPHTHALMIC PRODUCT
2y 5m to grant Granted Jan 20, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

1-2
Expected OA Rounds
56%
Grant Probability
91%
With Interview (+35.0%)
3y 3m
Median Time to Grant
Low
PTA Risk
Based on 707 resolved cases by this examiner. Grant probability derived from career allow 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