Prosecution Insights
Last updated: October 04, 2026
Application No. 18/345,374

BREATHING EXERCISE APPARATUSES

Non-Final OA §102§103
Filed
Jun 30, 2023
Examiner
ANDERSON, MEGAN M
Art Unit
3784
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Berendo Scientific LLC
OA Round
3 (Non-Final)
75%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 75% — above average
75%
Career Allowance Rate
559 granted / 746 resolved
+4.9% vs TC avg
Strong +28% interview lift
Without
With
+27.8%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 1m
Avg Prosecution
28 currently pending
Career history
779
Total Applications
across all art units

Statute-Specific Performance

§101
1.8%
-38.2% vs TC avg
§103
36.2%
-3.8% vs TC avg
§102
23.5%
-16.5% vs TC avg
§112
31.9%
-8.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 746 resolved cases

Office Action

§102 §103
DETAILED ACTION This is the First Action for the Request for Continued Examination based on the 18/345,374 application filed on 06/30/2023 and which claims as amended on 04/06/2026 have been considered in the ensuing 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 . 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. Claims 1-2 and 9-11 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Rahmani et al (US 2023/0263989). Regarding claim 1: Rahmani et al disclose a member defining an open proximal portion (see annotated Fig. below) configured to be disposed to a nose without covering an open mouth of a user such that nasal breathing by the user through the open proximal portion results in anterior movement of a soft palate of the user to open space in an area of a throat of the user behind the soft palate to create a continuous air pathway from the nose to lungs of the user (the open proximal portion is positioned to a nose, does not cover a mouth and breathing through the nose would result in the movement claimed. The Examiner further notes that the claim language is intended use, and the apparatus must only be capable of performing the claimed function); a valve mechanism (valve 312) operatively arranged with the member and biased towards a closed position (Rahmani discloses that the valve is biased closed and opens when the user breathes through the proximal portion) unless an absolute pressure in the open proximal portion, resulting from the nasal breathing, is greater than a threshold pressure (see Fig. 3); and a distal portion (see annotated Fig. below), wherein the open proximal portion and distal portion are fluidly connected when the valve mechanism is not in the closed position (see Fig. 2A-2B showing airflow). [AltContent: textbox (Distal portion)][AltContent: arrow][AltContent: textbox (Valve mechanism)][AltContent: arrow][AltContent: textbox (Open proximal portion)][AltContent: arrow] PNG media_image1.png 373 466 media_image1.png Greyscale Regarding claim 2: Rahmani et al disclose the threshold pressure is based on at least one of a stiffness of the valve mechanism, a dimension of the valve mechanism, or a dimension of the member (the stiffness of the valve mechanism and dimensions inherently contribute to the threshold pressure of the valve). Regarding claim 9: Rahmani et al disclose a first apparatus (the instant application discloses that the first and second apparatus can share a housing, for purposes of examination, the left and right side of the device of Rahmani et al has been disclosed as the first and second apparatus, as is consistent with the Applicant’s disclosure) comprising a first member defining a first open (see annotated Fig. below) proximal portion configured to be disposed to a nose without covering an open mouth (see Figs. 1-3) of a user such that nasal breathing by the user through the first open proximal portion results in anterior movement of a soft palate of the user to open space in an area of a throat of the user behind the soft palate to create a continuous air pathway from the nose to lungs of the user (the open proximal portion is positioned to a nose, does not cover a mouth and breathing through the nose would result in the movement claimed. The Examiner further notes that the claim language is intended use, and the apparatus must only be capable of performing the claimed function), a first valve mechanism (see annotated Fig. below) operatively arranged with the first member and biased towards a closed position unless an absolute pressure in the first open proximal portion (Rahmani et al shows the valve mechanism biased in a closed position), resulting from the nasal breathing, is greater than a threshold pressure and a first distal portion, wherein the first open proximal and first distal portions are fluidly connected when the first valve mechanism is not in the closed position (see Fig. 1-3); and a second apparatus comprising a second member defining a second open proximal portion (see annotated Fig. below) configured to be disposed to the nose without covering the open mouth of the user (the open proximal portion is positioned to a nose, does not cover a mouth and breathing through the nose would result in the movement claimed. The Examiner further notes that the claim language is intended use, and the apparatus must only be capable of performing the claimed function), a second valve mechanism (see annotated Fig. below) operatively arranged with the second member and biased towards a closed position unless an absolute pressure in the second open proximal portion is greater than a threshold pressure, and a second distal portion, wherein the second open proximal and second distal portions are fluidly connected when the second valve mechanism is not in the closed position (see Fig. 1-3). [AltContent: arrow][AltContent: arrow][AltContent: textbox (Distal portion)][AltContent: arrow][AltContent: textbox (Valve mechanism)][AltContent: arrow][AltContent: textbox (Open proximal portion)][AltContent: arrow] PNG media_image1.png 373 466 media_image1.png Greyscale Regarding claim 11: Rahmani et al disclose that the first and second apparatus define a combined housing (see explanation in claim 9 above). 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. Claims 5-6, 12, 14-15 and 17 are rejected under 35 U.S.C. 103 as being unpatentable over Rahmani et al (US 2023/0263989) in view of Kezirian et al (US 10,335,635). Regarding claim 5: Rahmani et al disclose a member defining an open proximal portion (see annotated Fig. below) configured to be disposed to a nose without covering an open mouth of a user such that nasal breathing by the user through the open proximal portion results in anterior movement of a soft palate of the user to open space in an area of a throat of the user behind the soft palate to create a continuous air pathway from the nose to lungs of the user (the open proximal portion is positioned to a nose, does not cover a mouth and breathing through the nose would result in the movement claimed. The Examiner further notes that the claim language is intended use, and the apparatus must only be capable of performing the claimed function); a valve mechanism (valve 312) operatively arranged with the member and biased towards a closed position (Rahmani discloses that the valve is biased closed and opens when the user breathes through the proximal portion) unless an absolute pressure in the open proximal portion, resulting from the nasal breathing, is greater than a threshold pressure (see Fig. 3); and a distal portion (see annotated Fig. below), wherein the open proximal portion and distal portion are fluidly connected when the valve mechanism is not in the closed position (see Fig. 2A-2B showing airflow). PNG media_image2.png 377 525 media_image2.png Greyscale Rahmani et al fails to specifically disclose that the valve mechanism is biased to the open position. Kezirian et al teaches various breathing exercisers with open proximal portions, valve mechanism and distal ends and a method of use that includes "and generating, by the user, with the head and neck exercise apparatus, for a predetermined number of repetitions or duration of time, the absolute pressure within the open proximal portion such that there is a response in the feedback mechanism to train muscles associated with creating the absolute pressure." See claim 1. It would have been further obvious to a person having ordinary skill in the art before the effective filing date of the claimed invention to modify the check valves of Rahmani et al to either be biased open, as taught by Kezirian et al as the function of the exerciser would not change as the check valves remain unidirectional. Regarding claim 6: Rahmani et al as modified disclose the threshold pressure is based on at least one of a stiffness of the valve mechanism, a dimension of the valve mechanism, or a dimension of the member (the stiffness of the valve mechanism and dimensions inherently contribute to the threshold pressure of the valve). Regarding claim 12: Rahmani et al disclose a first apparatus (the instant application discloses that the first and second apparatus can share a housing, for purposes of examination, the left and right side of the device of Rahmani et al has been disclosed as the first and second apparatus, as is consistent with the Applicant’s disclosure) comprising a first member defining a first open (see annotated Fig. below) proximal portion configured to be disposed to a nose without covering an open mouth (see Figs. 1-3) of a user such that nasal breathing by the user through the first open proximal portion results in anterior movement of a soft palate of the user to open space in an area of a throat of the user behind the soft palate to create a continuous air pathway from the nose to lungs of the user (the open proximal portion is positioned to a nose, does not cover a mouth and breathing through the nose would result in the movement claimed. The Examiner further notes that the claim language is intended use, and the apparatus must only be capable of performing the claimed function), a first valve mechanism (see annotated Fig. below) operatively arranged with the first member and biased towards a closed position unless an absolute pressure in the first open proximal portion (Rahmani et al shows the valve mechanism biased in a closed position), resulting from the nasal breathing, is greater than a threshold pressure and a first distal portion, wherein the first open proximal and first distal portions are fluidly connected when the first valve mechanism is not in the closed position (see Fig. 1-3); and a second apparatus comprising a second member defining a second open proximal portion (see annotated Fig. below) configured to be disposed to the nose without covering the open mouth of the user (the open proximal portion is positioned to a nose, does not cover a mouth and breathing through the nose would result in the movement claimed. The Examiner further notes that the claim language is intended use, and the apparatus must only be capable of performing the claimed function), a second valve mechanism (see annotated Fig. below) operatively arranged with the second member and biased towards a closed position unless an absolute pressure in the second open proximal portion is greater than a threshold pressure, and a second distal portion, wherein the second open proximal and second distal portions are fluidly connected when the second valve mechanism is not in the closed position (see Fig. 1-3). [AltContent: arrow][AltContent: arrow][AltContent: textbox (Distal portion)][AltContent: arrow][AltContent: textbox (Valve mechanism)][AltContent: arrow][AltContent: textbox (Open proximal portion)][AltContent: arrow] PNG media_image1.png 373 466 media_image1.png Greyscale Rahmani et al fails to specifically disclose one valve is biased open Kezirian et al teaches various breathing exercisers with open proximal portions, valve mechanism and distal ends and a method of use that includes "and generating, by the user, with the head and neck exercise apparatus, for a predetermined number of repetitions or duration of time, the absolute pressure within the open proximal portion such that there is a response in the feedback mechanism to train muscles associated with creating the absolute pressure." See claim 1. It would have been further obvious to a person having ordinary skill in the art before the effective filing date of the claimed invention to modify the check valves of Rahmani et al to either be biased closed or biased open, as taught by Kezirian et al as the function of the exerciser would not change as the check valves remain unidirectional. The Examiner further notes that having one valve biased open to positive pressure and on valve biased closed to positive pressure, would also result in unidirectional breathing through each nostril, as intended by Rahmani et al. Regarding claim 14: Rahmani et al as modified disclose that the first and second apparatus define a combined housing (see explanation in claim 9 above). Regarding claim 15: Rahmani et al disclose a first apparatus (the instant application discloses that the first and second apparatus can share a housing, for purposes of examination, the left and right side of the device of Rahmani et al has been disclosed as the first and second apparatus, as is consistent with the Applicant’s disclosure) comprising a first member defining a first open (see annotated Fig. below) proximal portion configured to be disposed to a nose without covering an open mouth (see Figs. 1-3) of a user such that nasal breathing by the user through the first open proximal portion results in anterior movement of a soft palate of the user to open space in an area of a throat of the user behind the soft palate to create a continuous air pathway from the nose to lungs of the user (the open proximal portion is positioned to a nose, does not cover a mouth and breathing through the nose would result in the movement claimed. The Examiner further notes that the claim language is intended use, and the apparatus must only be capable of performing the claimed function), a first valve mechanism (see annotated Fig. below) operatively arranged with the first member and biased towards a closed position unless an absolute pressure in the first open proximal portion (Rahmani et al shows the valve mechanism biased in a closed position), resulting from the nasal breathing, is greater than a threshold pressure and a first distal portion, wherein the first open proximal and first distal portions are fluidly connected when the first valve mechanism is not in the closed position (see Fig. 1-3); and a second apparatus comprising a second member defining a second open proximal portion (see annotated Fig. below) configured to be disposed to the nose without covering the open mouth of the user (the open proximal portion is positioned to a nose, does not cover a mouth and breathing through the nose would result in the movement claimed. The Examiner further notes that the claim language is intended use, and the apparatus must only be capable of performing the claimed function), a second valve mechanism (see annotated Fig. below) operatively arranged with the second member and biased towards a closed position unless an absolute pressure in the second open proximal portion is greater than a threshold pressure, and a second distal portion, wherein the second open proximal and second distal portions are fluidly connected when the second valve mechanism is not in the closed position (see Fig. 1-3). [AltContent: arrow][AltContent: arrow][AltContent: textbox (Distal portion)][AltContent: arrow][AltContent: textbox (Valve mechanism)][AltContent: arrow][AltContent: textbox (Open proximal portion)][AltContent: arrow] PNG media_image1.png 373 466 media_image1.png Greyscale Rahmani et al fails to specifically disclose that the valve mechanisms are biased to the open position. Kezirian et al teaches various breathing exercisers with open proximal portions, valve mechanism and distal ends and a method of use that includes "and generating, by the user, with the head and neck exercise apparatus, for a predetermined number of repetitions or duration of time, the absolute pressure within the open proximal portion such that there is a response in the feedback mechanism to train muscles associated with creating the absolute pressure." See claim 1. It would have been further obvious to a person having ordinary skill in the art before the effective filing date of the claimed invention to modify the check valves of Rahmani et al to either be biased open, as taught by Kezirian et al as the function of the exerciser would not change as the check valves remain unidirectional. Regarding claim 17: Rahmani et al as modified disclose that the first and second apparatus define a combined housing (see explanation in claim 9 above). Allowable Subject Matter Claims 3, 7, 10, 13 and 16 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. Response to Arguments Applicant’s arguments with respect to claims specifically regarding prior art references of Roy (US 4,601,465) and Kezirian et al (US 10,335,635) have been considered but are moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. With respect to the arguments addressing the Rahmani et al (US 2023/0263989), discussed during the interview conducted on 01/21/2026, the arguments are not persuasive. With regards to the valve mechanism of Rahmani et al, the Examiner respectfully disagrees. Rahmani et al discloses one-way check valves, which is shown in Fig. 3 to be closed in the direction opposite the required airflow. The check valves only open when there is pressure exerted in the direction in which it opens. Paragraphs [0015-0016] states that the airflow is causing the valve to open, therefore it is biased shut (“The force of air causes check valve 258 to open, while check valve 262 remains closed, resulting in air 254 selectively passing through one nostril and not the other. ” see paragraph [0016]). With regards to the absolute pressure, the user inhaling and exhaling is causing a pressure to increase to the point of the one-way valve opening respectively, this fulfils the limitation of the valve responding to the threshold pressure. With regards to the arguments addressing flow direction and pressure magnitude, the pressure magnitude/threshold pressure has not been defined. A pressure magnitude/ threshold pressure above zero would fulfil the limitation. With respect to the previous arguments regarding Kezirian, the rejection has been changed such that Kezirian is only relied on to discuss various valve mechanism. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to MEGAN M ANDERSON whose telephone number is (313)446-6531. The examiner can normally be reached M-TH 6 a.m. -4 p.m. (Arizona). 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, LoAn Jimenez can be reached at 571-272-4966. 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. /Megan Anderson/Primary Examiner, Art Unit 3784
Read full office action

Prosecution Timeline

Show 1 earlier event
Jun 26, 2025
Non-Final Rejection mailed — §102, §103
Sep 26, 2025
Response Filed
Nov 05, 2025
Final Rejection mailed — §102, §103
Jan 21, 2026
Examiner Interview Summary
Jan 21, 2026
Examiner Interview (Telephonic)
Apr 06, 2026
Request for Continued Examination
Apr 14, 2026
Response after Non-Final Action
May 07, 2026
Non-Final Rejection mailed — §102, §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

3-4
Expected OA Rounds
75%
Grant Probability
99%
With Interview (+27.8%)
2y 1m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 746 resolved cases by this examiner. Grant probability derived from career allowance rate.

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