Prosecution Insights
Last updated: October 25, 2026
Application No. 18/905,015

WIDE-SIZE RANGE AERODYNAMIC FOCUSING LENS

Non-Final OA §102
Filed
Oct 02, 2024
Priority
Oct 02, 2023 — provisional 63/587,196
Examiner
JENKINS, JERMAINE L
Art Unit
2855
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Board Of Regents Of Nshe On Behalf Of Dri
OA Round
1 (Non-Final)
88%
Grant Probability
Favorable
1-2
OA Rounds
3m
Est. Remaining
96%
With Interview

Examiner Intelligence

Grants 88% — above average
88%
Career Allowance Rate
663 granted / 752 resolved
+20.2% vs TC avg
Moderate +8% lift
Without
With
+8.1%
Interview Lift
resolved cases with interview
Typical timeline
2y 4m
Avg Prosecution
10 currently pending
Career history
767
Total Applications
across all art units

Statute-Specific Performance

§101
3.0%
-37.0% vs TC avg
§103
40.6%
+0.6% vs TC avg
§102
30.0%
-10.0% vs TC avg
§112
20.9%
-19.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 752 resolved cases

Office Action

§102
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 . Claim Objections Claim 1 is objected to because of the following informalities: In line 4 of claim 1, the term “and” was repeated twice. The limitation will be read as “…a second focusing lens element group, and an accelerating nozzle” upon further examination. Appropriate correction is required. 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)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claims 1-9 are rejected under 35 U.S.C. 102(a)(2) as being anticipated by Wang et al (US 7476851 B2) “hereinafter Wang”. The applied reference has a common inventor with the instant application. Based upon the earlier effectively filed date of the reference, it constitutes prior art under 35 U.S.C. 102(a)(2). This rejection under 35 U.S.C. 102(a)(2) might be overcome by: (1) a showing under 37 CFR 1.130(a) that the subject matter disclosed in the reference was obtained directly or indirectly from the inventor or a joint inventor of this application and is thus not prior art in accordance with 35 U.S.C. 102(b)(2)(A); (2) a showing under 37 CFR 1.130(b) of a prior public disclosure under 35 U.S.C. 102(b)(2)(B) if the same invention is not being claimed; or (3) a statement pursuant to 35 U.S.C. 102(b)(2)(C) establishing that, not later than the effective filing date of the claimed invention, the subject matter disclosed in the reference and the claimed invention were either owned by the same person or subject to an obligation of assignment to the same person or subject to a joint research agreement. Regarding claim 1, Wang teaches a wide-size range aerodynamic focusing lens (10, i.e. aerosol beam shaping apparatus) comprising a virtual impactor comprising an inlet nozzle, a major flow tube (18), and a receiving nozzle (52, i.e. converging conical nozzle) (Column 8, lines 33-38); a plurality of grouped focusing elements (i.e. focusing means) comprising a first focusing lens element group, a refocusing lens element group, and a second focusing lens element group, and an accelerating nozzle (Column 8, lines 33-38 & Column 9, lines 4-45; See Figure 15 below). Regarding claim 2, Wang teaches wherein the first focusing lens element group comprises one or more particle focusing lenses focusing a first size range particle (Column 26, line 51 – Column 27, line 47; See Figure 15 below). Regarding claim 3, Wang teaches wherein the second focusing lens element group comprises one or more particle focusing lenses focusing a second size range particle (Column 26, line 51 – Column 27, line 47; See Figure 15 below). Regarding claim 4, Wang teaches wherein the refocusing lens element group comprises one or more particle focusing lenses refocusing the first size range particle (Column 26, line 51 – Column 27, line 47; See Figure 15 below). Regarding claim 5, Wang teaches wherein a particle enters the refocusing lens element group after passing through the first focusing lens element group and before entering the second focusing lens element group (Column 13, line 56 – Column 14, line 24; See Figure 15 below). Regarding claim 6, Wang teaches wherein the accelerating nozzle (Column 8, lines 33-38) comprises a step nozzle, the step nozzle comprising a step diameter equal to approximately half a preceding proximal spacer diameter (i.e. nozzle diameter) (Column 28, lines 46-63). Regarding claim 7, Wang teaches wherein the step is a large particle refocusing step (Column 28, lines 46-63). Regarding claim 8, Wang teaches wherein the accelerating nozzle comprises a thin plate orifice exit (56) (Column 8, line 61 – Column 9, line 3; See Figure 15 below). Regarding claim 9, Wang teaches wherein the thin plate orifice exit (56) is a small particle focusing exit (Column 8, line 61 – Column 9, line 3; See Figure 15 below). PNG media_image1.png 402 660 media_image1.png Greyscale Allowable Subject Matter Claims 10-17 are allowed. The following is a statement of reasons for the indication of allowable subject matter: In the Examiner’s opinion regarding claim 10, Wang teaches a wide-size range aerodynamic focusing lens (10, i.e. aerosol beam shaping apparatus) comprising a virtual impactor comprising an inlet nozzle, a major flow tube (18), and a receiving nozzle (52, i.e. converging conical nozzle) (Column 8, lines 33-38); a plurality of grouped focusing elements (i.e. focusing means) comprising a first focusing lens element group, a refocusing lens element group, and a second focusing lens element group, and an accelerating nozzle (Column 8, lines 33-38 & Column 9, lines 4-45). However, Wang does not teach the structural limitations of a wide-size range aerodynamic focusing lens further comprising a third focusing lens element group and a plurality of spacers wherein a diameter ratio of a spacer proximal to a lens element is greater than or equal to 2 to and less than or equal to 20 where the stated limitations are not suggested in addition to not being anticipated or taught in combination with the remaining limitations of independent claim 10. The remaining claims are allowed due to their dependency. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to JERMAINE L JENKINS whose telephone number is (571)272-2179. The examiner can normally be reached M-F 7-3 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, Peter Macchiarolo can be reached at 571-272-2375. 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. /J.L.J/Examiner, Art Unit 2855 /PETER J MACCHIAROLO/Supervisory Patent Examiner, Art Unit 2855
Read full office action

Prosecution Timeline

Oct 02, 2024
Application Filed
Sep 21, 2026
Non-Final Rejection mailed — §102 (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
88%
Grant Probability
96%
With Interview (+8.1%)
2y 4m (~3m remaining)
Median Time to Grant
Low
PTA Risk
Based on 752 resolved cases by this examiner. Grant probability derived from career allowance rate.

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