Prosecution Insights
Last updated: August 06, 2026
Application No. 18/281,135

USE OF NADOLOL TO TREAT CHRONIC OBSTRUCTIVE PULMONARY DISEASE BY BLOCKAGE OF THE ARRESTIN-2 PATHWAY

Non-Final OA §103
Filed
Sep 08, 2023
Priority
Mar 09, 2021 — UN 63158701 +3 more
Examiner
TRUONG, QUANGLONG N
Art Unit
1624
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Chronic Airway Therapeutics Limited
OA Round
1 (Non-Final)
79%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 79% — above average
79%
Career Allowance Rate
509 granted / 646 resolved
+18.8% vs TC avg
Strong +24% interview lift
Without
With
+23.5%
Interview Lift
resolved cases with interview
Typical timeline
2y 2m
Avg Prosecution
48 currently pending
Career history
683
Total Applications
across all art units

Statute-Specific Performance

§101
4.1%
-35.9% vs TC avg
§103
55.1%
+15.1% vs TC avg
§102
11.3%
-28.7% vs TC avg
§112
18.4%
-21.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 646 resolved cases

Office Action

§103
DETAILED ACTION Status of Application The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Election/Restrictions Applicant’s election with traverse of Group II, claims 178-184 and 187-190, in the reply filed on 5/13/2024 is acknowledged. The arguments have been fully considered and is found persuasive. The restriction and species election requirement are withdrawn. Claims 169-190 are included in the prosecution. Claim Rejections – 35 U.S.C. 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 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. Claims 169-190 are rejected under 35 U.S.C. 103 as being unpatentable over Kobilka et al. (WO 2019/204768) hereinafter Kobilka. Regarding claims 169-190, Kobilka discloses an agent for treating a pulmonary disease. The agent is an agent for treating asthma. The agent is nadolol [0251]. Kobilka discloses a method of treating a pulmonary disease, the method including administering to a subject in need thereof (e.g., a subject having the pulmonary disease or a subject who may develop the pulmonary disease) a therapeutically effective amount of a compound described herein, including embodiments. In embodiments the pulmonary disease is asthma [0255]. method of treating a pulmonary disease, the method including administering to a subject in need thereof (e.g., a subject having the pulmonary disease or a subject who may develop the pulmonary disease) a therapeutically effective amount of a compound described herein, including embodiments, and a ~2 adrenergic receptor modulator (e.g., inhibitor, antagonist, inverse agonist, agonist, allosteric modulator, allosteric inhibitor, allosteric antagonist, orthosteric inhibitor, orthosteric antagonist, orthosteric inverse agonist, or orthosteric agonist). In embodiments the pulmonary disease is asthma [0262]. Kobilka discloses an oral formulation [0138]. Kobilka discloses the terms "lung disease," "pulmonary disease," "pulmonary disorder," etc. are used interchangeably herein. Examples of lung diseases include asthma, Chronic Obstructive Pulmonary Disease (COPD) [0149]. Kobilka does not explicitly disclose the method as claimed together in one single embodiment. However, it would have been obvious to one of ordinary skill in the art at the time the invention was made to modify the teachings of Kobilka to arrive at the instant invention, with the motivation that Kobilka discloses each of the required components and amounts, and for the same purpose of a method of treating pulmonary disease [0262]. Further, one having ordinary still in the art would reasonably expect success in combining prior art elements according to known methods to yield predictable results, see MPEP 2141. The Supreme Court has acknowledged: When a work is available in one field of endeavor, design incentives and other market forces can prompt variations of it, either in the same field or a different one. If a person of ordinary skill can implement a predictable variation... 103 likely bars its patentability...if a technique has been used to improve one device, and a person of ordinary skill in the art would recognize that it would improve similar devices in the same way, using the technique is obvious unless its actual application is beyond that person’s skill. A court must ask whether the improvement is more than the predictable use of prior-art elements according to their established functions......the combination of familiar elements according to known methods is likely to be obvious when it does no more than yield predictable results (see KSR International Co. v. Teleflex Inc., 82 USPQ2d 1385 U.S. 2007) (emphasis added). From the teachings of the references, it is apparent that one of ordinary skill in the art would have had a reasonable expectation of success in producing the claimed invention. Therefore, the invention as a whole was prima facie obvious to one of ordinary skill in the art at the time the invention was made, as evidenced by the references, especially in the absence of evidence to the contrary. Conclusion No claims are allowed. Any inquiry concerning this communication or earlier communications from the examiner should be directed to QUANGLONG N TRUONG whose telephone number is (571)270-0719. The examiner can normally be reached on 8:00 am-5:00 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, Robert A Wax can be reached on 571-272-0623. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. 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://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /QUANGLONG N TRUONG/Examiner, Art Unit 1615
Read full office action

Prosecution Timeline

Sep 08, 2023
Application Filed
Jul 15, 2026
Non-Final Rejection mailed — §103 (current)

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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
79%
Grant Probability
99%
With Interview (+23.5%)
2y 2m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 646 resolved cases by this examiner. Grant probability derived from career allowance rate.

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