Prosecution Insights
Last updated: September 17, 2026
Application No. 16/433,555

Liposomal Mitigation of Drug-Induced Long QT Syndrome and Potassium Delayed-Rectifier Current

Non-Final OA §112
Filed
Jun 06, 2019
Priority
Jun 03, 2011 — provisional 61/493,257 +4 more
Examiner
RONEY, CELESTE A
Art Unit
1612
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Signpath Pharma Inc.
OA Round
15 (Non-Final)
63%
Grant Probability
Moderate
15-16
OA Rounds
0m
Est. Remaining
80%
With Interview

Examiner Intelligence

Grants 63% of resolved cases
63%
Career Allowance Rate
483 granted / 769 resolved
+2.8% vs TC avg
Strong +18% interview lift
Without
With
+17.5%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
54 currently pending
Career history
816
Total Applications
across all art units

Statute-Specific Performance

§101
2.3%
-37.7% vs TC avg
§103
55.6%
+15.6% vs TC avg
§102
3.9%
-36.1% vs TC avg
§112
19.8%
-20.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 769 resolved cases

Office Action

§112
DETAILED ACTION Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on 04/22/2026 has been entered. Previous Rejections Applicant’s arguments, filed 04/22/2026, have been fully considered. Rejections and/or objections not reiterated from previous office actions are hereby withdrawn. The following rejections and/or objections are either reiterated or newly applied. They constitute the complete set presently being applied to the instant application. Claim Rejections - 35 USC § 112 – Indefiniteness and Lack of Antecedent Basis Claims 1, 3-5, 7-8, 12, 16, 18-19 and 30 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. Claims 1, 12 and 30 are confusing, and require amendment. The claims recite “consisting of” language, and are further limited to “two active agents only”. The first active agent paragraph currently recites “comprising one or more”. However, this cannot be, since the composition comprises only two active agents, and the other has to be a lipid. Therefore, the Examiner recommends amending that paragraph to “a first active agent selected from the group consisting of…”. Furthermore, the phase “or any combinations thereof” will have to be deleted. Likewise, the second active agent paragraph currently recites “comprising one or more lipids….”. Since the lipid is an active agent, the Examiner recommends amendment reciting “a second active agent comprising one lipid administered…..wherein the one lipid is selected from the group consisting of… Additionally, the word “phospholipid” is redundant at the penultimate line of the second active agent paragraph, and will need to be deleted. The claim 12 interpretation follows the logic of claim 1. Additionally, claim 12 recites the limitation "pharmacologically active agents" in line eight. There is insufficient antecedent basis for this limitation in the claim. Further regarding claim 12, the word “phospholipid” is repeated at line five, and the word requires deletion; and, at the last line of the first active agent paragraph, the phrase “or any combinations thereof” requires deletion. The claim 30 interpretation follows the logic of claim 1. Additionally, the phrases “or any combinations thereof” and “one or more pharmacologically active agents” requires deletion. Claim Rejections - 35 USC § 112 – Indefiniteness, Not further Limiting The following is a quotation of 35 U.S.C. 112(d): (d) REFERENCE IN DEPENDENT FORMS.—Subject to subsection (e), a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. The following is a quotation of pre-AIA 35 U.S.C. 112, fourth paragraph: Subject to the following paragraph [i.e., the fifth paragraph of pre-AIA 35 U.S.C. 112], a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. Claim 5 is rejected under 35 U.S.C. 112(d) or pre-AIA 35 U.S.C. 112, 4th paragraph, as being of improper dependent form for failing to further limit the subject matter of the claim upon which it depends, or for failing to include all the limitations of the claim upon which it depends. Claim 5 does not further limit claim 1, from which it depends. Claim 1 limits the composition to two active agents only, inclusive of the lipid. The Examiner notes that claim 5 recites inducing drugs, which includes the drugs that induce the long QT syndrome recited in claim 1. Therefore, claim 5 broadens the claim 1 composition to three active agents, and is therefore, not further limiting. Applicant may cancel the claim(s), amend the claim(s) to place the claim(s) in proper dependent form, rewrite the claim(s) in independent form, or present a sufficient showing that the dependent claim(s) complies with the statutory requirements. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to CELESTE A RONEY whose telephone number is (571)272-5192. The examiner can normally be reached Monday-Friday; 8 AM-6 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, Sahana S Kaup can be reached at 571-272-6897. 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. /CELESTE A RONEY/Primary Examiner, Art Unit 1612
Read full office action

Prosecution Timeline

Show 45 earlier events
Jul 03, 2025
Response after Non-Final Action
Jul 11, 2025
Non-Final Rejection mailed — §112
Oct 13, 2025
Response Filed
Jan 30, 2026
Final Rejection mailed — §112
Mar 30, 2026
Response after Non-Final Action
Apr 22, 2026
Request for Continued Examination
Apr 24, 2026
Response after Non-Final Action
Jun 16, 2026
Non-Final Rejection mailed — §112 (current)

Precedent Cases

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2y 7m to grant Granted Aug 25, 2026
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2y 6m to grant Granted Aug 04, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

15-16
Expected OA Rounds
63%
Grant Probability
80%
With Interview (+17.5%)
3y 0m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 769 resolved cases by this examiner. Grant probability derived from career allowance rate.

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