Prosecution Insights
Last updated: August 17, 2026
Application No. 17/507,931

NOSE CONE VENT DESIGN FOR INHALATION DEVICE

Non-Final OA §103
Filed
Oct 22, 2021
Priority
Mar 18, 2021 — CIP of 11/925,749
Examiner
RUDDIE, ELLIOT S
Art Unit
3785
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Brady Worldwide Inc.
OA Round
3 (Non-Final)
66%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 66% — above average
66%
Career Allowance Rate
319 granted / 481 resolved
-3.7% vs TC avg
Strong +43% interview lift
Without
With
+42.7%
Interview Lift
resolved cases with interview
Typical timeline
3y 6m
Avg Prosecution
17 currently pending
Career history
508
Total Applications
across all art units

Statute-Specific Performance

§101
2.3%
-37.7% vs TC avg
§103
57.4%
+17.4% vs TC avg
§102
12.8%
-27.2% vs TC avg
§112
22.6%
-17.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 481 resolved cases

Office Action

§103
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 . 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and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114.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 June 30, 2026 has been entered. Priority Acknowledgement is made to Applicant’s claim to priority to Non-Provisional U.S. App. No. 17/205,280 filed March 18, 2021 now Pat. No. 11,925,749. Status of Claims This Office Action is responsive to the amendment filed on June 30, 2026. As directed by the amendment: claims 1, 9, and 17 have been amended. Thus, claims 1-26 are presently pending in this application. Claim(s) 1-4, 7, 9-12, 15, 17-19, 22, and 24-26 were previously rejected under 35 U.S.C. 103 as being unpatentable over Sugita et al. (U.S. Pub. No. 2010/0024814) in view of Curtis et al. (U.S. Pub. No. 2013/0213397). Claim(s) 5-6, 8, 13-14, 16, 20-21, and 23 were previously rejected under 35 U.S.C. 103 as being unpatentable further in view of Davidson et al. (U.S. Pub. No. 2017/0203058). Applicant's amendments necessitated the application of new grounds of rejection in light of prior art, shown below. 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. Claim(s) 1-4, 7, 9-12, 15, 17-19, 22, and 24-26 are rejected under 35 U.S.C. 103 as being unpatentable over Sugita et al. (U.S. Pub. No. 2010/0024814; hereinafter: “Sugita’814”) in view of Sugita et al. (U.S. Pub. No. 2010/0024812; hereinafter: “Sugita’812”) in view of Curtis et al. (U.S. Pub. No. 2013/0213397; hereinafter: “Curtis”). Regarding Claim 1, Sugita discloses a pharmaceutical drug delivery device comprising: a drug delivery device body (5; Fig. 1, 2, 8, 9); a fluid outlet nose cone (8; Fig. 1, 2, 8, 9) attached to the drug delivery device body (Fig. 1, 2; ¶¶ 0032, 0033); a fluid jet ejection cartridge (1; Fig. 1-5B, 9) containing a liquid pharmaceutical drug (¶¶ 0032, 0033, 0053-0057) is disposed in the drug delivery device body (Fig. 1, 2, 8, 9; ¶¶ 0032, 0033, 0053-0057, 0068), wherein a fluid jet ejection head (3; Fig. 1-3A, 4A, 10) is attached to the fluid jet ejection cartridge (Fig. 1-3A, 4A, 10; ¶¶ 0032, 0033, 0053-0057, 0068) and the fluid jet ejection head is in fluid flow communication with the fluid outlet nose cone (Fig. 1-3A, 4A, 8-10; ¶¶ 0032, 0033, 0053-0057, 0068), the fluid jet ejection head capable of producing a spray of the liquid pharmaceutical drug on demand under ambient atmospheric pressure (¶¶ 0032, 0033, 0053-0057, 0068), wherein the fluid outlet nose cone comprises a plurality of air flow ports (11; Fig. 1, 2, 8) open to an ambient atmosphere (¶¶ 0032, 0033) and (ii) an insert (37; Fig. 8-10) comprising a chamber (A, Fig. A annotated below) in communication with a surface (B, Fig. A annotated below) of the fluid jet ejection head, the chamber configured to retain a volume of moist air in contact with the surface of the fluid jet ejection head (Fig. 10; ¶ 0068). PNG media_image1.png 485 456 media_image1.png Greyscale Figure A, Adapted from Figure 10 of Sugita. Sugita does not specifically disclose the pharmaceutical drug delivery device wherein the plurality of air flow ports of the fluid outlet nose cone are a plurality of air flow channels open to an ambient atmosphere for providing a pressure differential between an inner area of the fluid outlet nose cone adjacent to the fluid ejection head and the ambient atmosphere. Curtis teaches a substances deliver inhaler (400; Fig. 4-9) comprising a fluid outlet (404; Fig. 4, 8, 9) comprising a plurality of air flow channels (406, 410; Fig. 4, 5, 8, 9) open to an ambient atmosphere for providing a pressure differential between an inner area (408; Fig. 4, 5, 8, 9; ¶¶ 0135, 0141-0146) of the fluid outlet adjacent to a fluid ejection head (402; Fig. 4, 8, 9) and the ambient atmosphere (Fig. 4-9; ¶¶ 0135, 0141-0146) for the purpose of opening or closing the plurality of air flow channels thereby influencing flow rate through the device thus tuning the device to respond "optimally" to the needs of a patient (¶ 0146). Therefore, it would have been obvious to one having ordinary skill in the art before the effective filing date of the invention to modify the pharmaceutical drug delivery device of Sugita to include the plurality of air flow ports of the fluid outlet nose cone to be the plurality of air flow channels open to the ambient atmosphere for providing a pressure differential between an inner area of the fluid outlet nose cone adjacent to the fluid ejection head and the ambient atmosphere as taught by Curtis for the purpose of opening or closing the plurality of air flow channels thereby influencing flow rate through the device thus tuning the device to respond "optimally" to the needs of a patient (See Curtis: ¶ 0146). Regarding Claims 2, 10, and 18, the modified device of Sugita discloses the pharmaceutical drug delivery device of claim 1, shown above. The modified device of Sugita discloses altering the plurality of air flow channels results in a change to the air flow rate (See Curtis: ¶¶ 0141-0146). The modified device of Sugita does not explicitly disclose the pressure differential ranges from about 5 to about 10 kPa at an air flow rate of from about 50 to about 100 L/min. The modified device of Sugita discloses altering the plurality of air flow channels needs to be optimized to influence the flow rate to tune the device respond to the needs of a patient (See Curtis: ¶ 0146). As such the opening or closing/blocking of the plurality of air flow channels is disclosed to be a result effective variable in that opening or closing/blocking of the plurality of air flow channels effects the air flow rate and pressure differential. Further, it appears that one of ordinary skill in the art would have had a reasonable expectation of success in modifying the modified device of Sugita to have the air flow rate and pressure differential within the claimed range, as it involves only adjusting the dimensions and/or opening or closing/blocking of a component disclosed to require adjustment. Therefore, it would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to modify the modified device of Sugita by making the plurality of air flow channels opened or closed/blocked such that the pressure differential ranges from about 5 to about 10 kPa at an air flow rate of from about 50 to about 100 L/min as a matter of routine optimization since it has been held that “where the general conditions of a claim are disclosed in the prior art, it is not inventive to discover the optimum or workable ranges by routine experimentation." In re Aller, 220 F.2d 454, 456, 105 USPQ 233, 235 (CCPA 1955) (See MPEP 2144.05). Regarding Claims 3, 11, and 19, the modified device of Sugita discloses the pharmaceutical drug delivery device of claim 1, wherein the plurality of air flow channels are adjacent to an exterior surface (A, Fig. B annotated below) of the fluid outlet nose cone (See Curtis: ¶¶ 0141-0146). PNG media_image2.png 275 464 media_image2.png Greyscale Figure B, Adapted from Figure 5 of Curtis. Regarding Claims 4 and 12, the modified device of Sugita discloses the pharmaceutical drug delivery device of claim 1, wherein the plurality of air flow channels extend along a long axis (B, Fig. B annotated above) of the fluid outlet nose cone (See Curtis: Fig. 4-9; ¶¶ 0141-0146). Regarding Claims 7, 15, and 22, the modified device of Sugita discloses the pharmaceutical drug delivery device of claim 1, shown above. The modified device of Sugita discloses altering the plurality of air flow channels results in a change to the air flow rate (See Curtis: ¶¶ 0141-0146). The modified device of Sugita does not explicitly disclose wherein the plurality of air flow channels have a combined air flow area ranging from about 8.0 to about 17.5 mm2. The modified device of Sugita discloses altering the plurality of air flow channels needs to be optimized to influence the flow rate to tune the device respond to the needs of a patient (See Curtis: ¶¶ 0145, 0146). As such the opening or closing/blocking and/or setting of the diameter of the plurality of air flow channels is disclosed to be a result effective variable in that opening or closing/blocking and/or changing the diameter of the plurality of air flow channels effects the air flow rate. Further, it appears that one of ordinary skill in the art would have had a reasonable expectation of success in modifying the modified device of Sugita to have the air flow rate within the claimed range, as it involves only adjusting the dimensions and/or opening or closing/blocking of a component disclosed to require adjustment. Therefore, it would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to modify the modified device of Sugita by making the plurality of air flow channels opened or closed/blocked or altering their diameter such that the plurality of air flow channels have a combined air flow area ranging from about 8.0 to about 17.5 mm2 as a matter of routine optimization since it has been held that “where the general conditions of a claim are disclosed in the prior art, it is not inventive to discover the optimum or workable ranges by routine experimentation." In re Aller, 220 F.2d 454, 456, 105 USPQ 233, 235 (CCPA 1955) (See MPEP 2144.05). Regarding Claim 9, Sugita discloses a method for reducing a pressure differential on a fluid jet ejection head for a nasal spray device (5, 8; Fig. 1, 2, 8, 9; ¶¶ 0032, 0033, 0053-0057, 0068), the method comprising: providing a fluid outlet nose cone (8; Fig. 1, 2, 8, 9) attached to a body (5; Fig. 1, 2, 8, 9) for the nasal spray device (Fig. 1-3A, 4A, 8-10; ¶¶ 0032, 0033, 0053-0057, 0068); a fluid jet ejection cartridge (1; Fig. 1-5B, 9) disposed in the body, the fluid jet ejection cartridge containing the fluid jet ejection head in fluid flow communication with the fluid outlet nose cone and a pharmaceutical drug in the fluid jet ejection cartridge (Fig. 1-3A, 4A, 8-10; ¶¶ 0032, 0033, 0053-0057, 0068), the fluid jet ejection head capable of producing a spray of the liquid pharmaceutical drug on demand under ambient atmospheric pressure (¶¶ 0032, 0033, 0053-0057, 0068), providing a plurality of air flow ports (11; Fig. 1, 2, 8) open to an ambient atmosphere (¶¶ 0032, 0033); providing an insert (37; Fig. 8-10) within the fluid outlet nose cone (Fig. 8-10; ¶ 0068), the insert comprising a chamber (A, Fig. A annotated above) in communication with a surface (B, Fig. A annotated above) of the fluid jet ejection head, the chamber configured to retain a volume of moist air in contact with the surface of the fluid jet ejection head (Fig. 10; ¶ 0068); and activating the nasal spray device when the fluid outlet nozzle is inserted into the nasal passage of a user (¶¶ 0032, 0033, 0053-0057, 0068). Sugita does not specifically discloses the method wherein the plurality of air flow ports open to an ambient atmosphere comprises providing a plurality of air flow channels open to an ambient atmosphere for providing a pressure differential between an inner area of the fluid outlet nose cone adjacent to the fluid jet ejection head and the ambient atmosphere; and activating the nasal spray device while flowing air through the air flow channels when the fluid outlet nozzle is inserted into the nasal passage of a user thereby preventing fluid from drooling from the fluid jet ejection head upon inhalation by a user of the nasal spray device. Curtis teaches a substances deliver method comprising a substances deliver device (400; Fig. 4-9) comprising a fluid outlet (404; Fig. 4, 8, 9) providing a plurality of air flow channels (406, 410; Fig. 4, 5, 8, 9) open to an ambient atmosphere for providing a pressure differential between an inner area (408; Fig. 4, 5, 8, 9; ¶¶ 0135, 0141-0146) of the fluid outlet adjacent to a fluid ejection head (402; Fig. 4, 8, 9) and the ambient atmosphere (Fig. 4-9; ¶¶ 0135, 0141-0146) and activating the device while flowing air through the air flow channels (¶¶ 0135, 0141-0146) thereby preventing fluid from drooling from the fluid ejection head upon inhalation by a user of the device (¶¶ 0135, 0141-0146) for the purpose of opening or closing the plurality of air flow channels thereby influencing flow rate through the device thus tuning the device to respond "optimally" to the needs of a patient (¶ 0146). Therefore, it would have been obvious to one having ordinary skill in the art before the effective filing date of the invention to modify the method of Sugita to include the plurality of air flow ports open to the ambient atmosphere comprises providing the plurality of air flow channels open to an ambient atmosphere for providing a pressure differential between an inner area of the fluid outlet nose cone adjacent to the fluid jet ejection head and the ambient atmosphere; and activating the nasal spray device while flowing air through the air flow channels when the fluid outlet nozzle is inserted into the nasal passage of a user thereby preventing fluid from drooling from the fluid jet ejection head upon inhalation by a user of the nasal spray device as taught by Curtis for the purpose of opening or closing the plurality of air flow channels thereby influencing flow rate through the device thus tuning the device to respond "optimally" to the needs of a patient (See Curtis: ¶ 0146). Regarding Claim 17, Sugita discloses a nose cone (8; Fig. 1, 2, 8-10) for a nasal spray device (Fig. 1, 2), comprising a fluid inlet (A, Fig. C annotated below) adjacent to a fluid jet ejection head (1; Fig. 1-5B, 9) and a fluid outlet (12; Fig. 1, 2, 8-10) for delivery of a pharmaceutical drug to a nasal cavity of a user (¶¶ 0032, 0033, 0053-0057, 0068), wherein the fluid outlet nose cone comprises a plurality of air flow ports (11; Fig. 1, 2, 8) open to an ambient atmosphere (¶¶ 0032, 0033) and the fluid jet ejection head capable of producing a spray of the liquid pharmaceutical drug on demand under ambient atmospheric pressure (¶¶ 0032, 0033, 0053-0057, 0068) and (ii) an insert (37; Fig. 8-10) comprising a chamber (A, Fig. A annotated above) in communication with a surface (B, Fig. A annotated above) of the fluid jet ejection head, the chamber configured to retain a volume of moist air in contact with the surface of the fluid jet ejection head (Fig. 10; ¶ 0068). PNG media_image3.png 396 397 media_image3.png Greyscale Figure C, Adapted from Figure 1 of Sugita. Sugita does not specifically disclose wherein the plurality of air flow ports of the fluid outlet nose cone are a plurality of air flow channels open to an ambient atmosphere for providing a pressure differential between an inner area of the fluid outlet nose cone adjacent to the fluid ejection head and the ambient atmosphere. Curtis teaches a fluid outlet (404; Fig. 4, 8, 9) comprising a plurality of air flow channels (406, 410; Fig. 4, 5, 8, 9) in an exterior surface (A, Fig. B annotated above) thereof for providing a pressure differential between the fluid inlet and the ambient atmosphere; wherein the plurality of air flow channels are open to an ambient atmosphere for providing a pressure differential between an inner area (408; Fig. 4, 5, 8, 9; ¶¶ 0135, 0141-0146) of the fluid outlet adjacent to a fluid ejection head (402; Fig. 4, 8, 9) and the ambient atmosphere (Fig. 4-9; ¶¶ 0135, 0141-0146) for the purpose of opening or closing the plurality of air flow channels thereby influencing flow rate through the device thus tuning the device to respond "optimally" to the needs of a patient (¶ 0146). Therefore, it would have been obvious to one having ordinary skill in the art before the effective filing date of the invention to modify the nose cone of Sugita to include the plurality of air flow ports of the fluid outlet nose cone are the plurality of air flow channels in the exterior surface thereof for providing the pressure differential between the fluid inlet and the ambient atmosphere as taught by Curtis for the purpose of opening or closing the plurality of air flow channels thereby influencing flow rate through the device thus tuning the device to respond "optimally" to the needs of a patient (See Curtis: ¶ 0146). Regarding Claims 24-26, the modified device of Sugita discloses wherein the fluid jet ejection head is selected from the group consisting of a thermal jet ejection head, a bubble jet ejection head, and a piezoelectric jet ejection head (See Sugita: ¶¶ 0053, 0054). Claim(s) 5-6, 8, 13-14, 16, 20-21, and 23 are rejected under 35 U.S.C. 103 as being unpatentable over Sugita in view of Curtis as applied to claims 1, 9, 15, and 17, respectively, above, and further in view of Davidson et al. (U.S. Pub. No. 2017/0203058; hereinafter: “Davidson”). Regarding Claims 5-6, 13-14, and 20-21, the modified device of Sugita discloses the pharmaceutical drug delivery device of claims 1, 9, and 17, respectively, wherein the plurality of air flow channels comprise apertures (See Curtis: 410; Fig. 4, 5, 8, 9) in an exterior surface (A, Fig. B annotated above) of the fluid outlet nose cone. The modified device of Sugita does not specifically disclose the pharmaceutical drug delivery device wherein the plurality of air flow channels comprise elongate channels in an exterior surface of the fluid outlet nose cone and wherein the elongate channels are partially covered by an outer nose cone structure. Davidson teaches a flow regulating inhaler device (1300; Fig. 13A-13D) comprising a plurality of air flow channels (1310, 1312, 1330, 1340; Fig. 13A-13D) having elongate channels (¶¶ 0260-0269) in an exterior surface (A, Fig. D annotated below) of a fluid outlet nose cone (1301; Fig. 13A, 13B) and wherein the elongate channels are partially covered by an outer nose cone structure (1302; Fig. 13B; ¶¶ 0260-0269) for the purpose of allowing control of the flow through the plurality air flow channels (“bypass conduits”; ¶¶ 0263-0265). PNG media_image4.png 272 288 media_image4.png Greyscale Figure D, Adapted from Figure 13A of Davidson. Therefore, it would have been obvious to one having ordinary skill in the art before the effective filing date of the invention to modify the modified device of Sugita to include the plurality of air flow channels comprise elongate channels in the exterior surface of the fluid outlet nose cone and wherein the elongate channels are partially covered by the outer nose cone structure as taught by Davidson for the purpose of allowing control of the flow through the plurality air flow channels (See Davidson: ¶¶ 0263-0265). Regarding Claims 8 and 23, the modified device of Sugita discloses the pharmaceutical drug delivery device of claims 1 and 17, respectively, shown above. The modified device of Sugita does not specifically disclose the pharmaceutical drug delivery device wherein the nose cone further comprises a twistable closure configured to provide a variable air flow rate ranging from about 50 to about 100 L/min. Davidson teaches a flow regulating inhaler device (1300; Fig. 13A-13D) comprising a fluid outlet nose cone (1301; Fig. 13A, 13B) having a plurality of air flow channels (1310, 1312, 1330, 1340; Fig. 13A-13D), wherein the nose cone further comprises a twistable closure (1302; Fig. 13B) configured to provide a variable air flow rate (¶¶ 0260-0269) for the purpose of allowing control of the flow through the plurality air flow channels (“bypass conduits”; ¶¶ 0263-0265). It would have been obvious to one having ordinary skill in the art before the effective filing date of the invention to modify the modified device of Sugita to include the nose cone further comprises the twistable closure configured to provide the variable air flow rate as taught by Davidson for the purpose of allowing control of the flow through the plurality air flow channels (See Davidson: ¶¶ 0263-0265). The modified device of Sugita does not explicitly disclose the pharmaceutical drug delivery device wherein the variable air flow rate ranges from about 50 to about 100 L/min. The modified device of Sugita discloses altering the plurality of air flow channels needs to be optimized to influence the flow rate to tune the device respond to the needs of a patient (See Curtis: ¶ 0146). As such the opening or closing/blocking of the plurality of air flow channels is disclosed to be a result effective variable in that opening or closing/blocking of the plurality of air flow channels effects the air flow rate. Further, it appears that one of ordinary skill in the art would have had a reasonable expectation of success in modifying the modified device of Sugita to have the air flow rate within the claimed range, as it involves only adjusting the dimensions and/or opening or closing/blocking of a component disclosed to require adjustment. Therefore, it would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to modify the modified device of Sugita by making the plurality of air flow channels opened or closed/blocked such that the variable air flow rate ranges from about 50 to about 100 L/min as a matter of routine optimization since it has been held that “where the general conditions of a claim are disclosed in the prior art, it is not inventive to discover the optimum or workable ranges by routine experimentation." In re Aller, 220 F.2d 454, 456, 105 USPQ 233, 235 (CCPA 1955) (See MPEP 2144.05). Regarding Claim 16, the modified method of Sugita discloses the method of claim 15, shown above. The modified method of Sugita does not specifically disclose wherein the nose cone comprises a twistable closure, further comprising twisting the twistable closure to increase or decrease the combined are flow area. Davidson teaches a flow regulating inhaler device (1300; Fig. 13A-13D) comprising a fluid outlet nose cone (1301; Fig. 13A, 13B) having a plurality of air flow channels (1310, 1312, 1330, 1340; Fig. 13A-13D), wherein the nose cone further comprises a twistable closure (1302; Fig. 13B), further comprising twisting the twistable closure to increase or decrease the combined are flow area (¶¶ 0260-0269) for the purpose of allowing control of the flow through the plurality air flow channels (“bypass conduits”; ¶¶ 0263-0265). Therefore, it would have been obvious to one having ordinary skill in the art before the effective filing date of the invention to modify the modified method of Sugita to include the nose cone comprises the twistable closure, further comprising twisting the twistable closure to increase or decrease the combined are flow area as taught by Davidson for the purpose of allowing control of the flow through the plurality air flow channels (See Davidson: ¶¶ 0263-0265). Response to Arguments Applicant’s arguments regarding the new limitations with respect to “(ii) an insert comprising a chamber in communication with a surface of the fluid jet ejection head, the chamber configured to retain a volume of moist air in contact with the surface of the fluid jet ejection head.” as recited in independent claim 1 and 9 and similarly in independent claim 17 have been considered but are moot because the arguments do not apply to the rejection in the previous office action (e.g., do not apply to claim limitations previously rejected). All arguments directed to new limitations in the amended claims are addressed in the 35 U.S.C. 103 rejection Sugita in view of Curtis, shown above. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ELLIOT S RUDDIE whose telephone number is (571)272-7634. The examiner can normally be reached M-F usually 9-7 EST. 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, Kendra Carter can be reached at (571) 272-9034. 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. /ELLIOT S RUDDIE/Primary Patent Examiner, Art Unit 3785
Read full office action

Prosecution Timeline

Oct 22, 2021
Application Filed
Apr 29, 2025
Non-Final Rejection mailed — §103
Sep 23, 2025
Response Filed
Dec 30, 2025
Final Rejection mailed — §103
Jun 30, 2026
Request for Continued Examination
Jul 12, 2026
Response after Non-Final Action
Jul 24, 2026
Non-Final Rejection mailed — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12697446
VENTING OF PHARMACEUTICAL DRUG DELIVERY DEVICE FOR AIR FLOW AND HUMIDITY CONTROL
2y 5m to grant Granted Aug 04, 2026
Patent 12691241
BREATHING ASSISTANCE APPARATUS
2y 7m to grant Granted Jul 28, 2026
Patent 12678584
TUB FOR USE IN A HUMIDIFIER
4y 1m to grant Granted Jul 14, 2026
Patent 12673176
DUAL CHAMBER PATIENT INTERFACE WITH AIRFLOW REGULATION
4y 4m to grant Granted Jul 07, 2026
Patent 12673174
METHODS AND SYSTEMS OF SUPPLYING THERAPEUTIC GAS
4y 0m to grant Granted Jul 07, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

3-4
Expected OA Rounds
66%
Grant Probability
99%
With Interview (+42.7%)
3y 6m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 481 resolved cases by this examiner. Grant probability derived from career allowance 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