Prosecution Insights
Last updated: May 29, 2026
Application No. 18/039,487

METHODS AND APPARATUS FOR PROVIDING A BROADBAND LIGHT SOURCE

Final Rejection §102§112
Filed
May 30, 2023
Priority
Dec 23, 2020 — EU 20217094.0 +2 more
Examiner
STAHL, MICHAEL J
Art Unit
2874
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
ASML Netherlands B.V.
OA Round
2 (Final)
90%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
98%
With Interview

Examiner Intelligence

Grants 90% — above average
90%
Career Allowance Rate
1130 granted / 1256 resolved
+22.0% vs TC avg
Moderate +8% lift
Without
With
+7.5%
Interview Lift
resolved cases with interview
Fast prosecutor
1y 11m
Avg Prosecution
23 currently pending
Career history
1284
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
38.9%
-1.1% vs TC avg
§102
41.3%
+1.3% vs TC avg
§112
17.3%
-22.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1256 resolved cases

Office Action

§102 §112
Notice of Pre-AIA or AIA Status The present application, filed after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. Claim 22 is rejected under 35 U.S.C. 112(b) as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor regards as the invention. Claim 22 is indefinite because line 3 recites "a pump source comprising configured to". It appears that there is text missing between "comprising" and "configured". 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 17-21 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Azhar et al. (article in Optics Express, February 2013, citation "JJR" in the 5/30/2023 information disclosure statement). Claim 17: Azhar discloses a method for generating broadband radiation, the method comprising: generating, by a pump source ("amplified Ti:sapphire laser system", Section 2), pump radiation comprising a plurality of radiation pulses ("delivering pulses of duration 140 fs") having a pulse energy of 1 µJ or less ("the maximum pulse energy launched into the core was 450 nJ", i.e. 0.45 µJ) and a pulse duration between 10 femtoseconds and 10 picoseconds (140 fs); and receiving the pump radiation at an input end of a hollow core fiber ("kagomé HC-PCF"), the hollow core fiber comprising a hollow core ("core", central hexagonal region in fig. 1) and a cladding (lattice around the central hexagonal region) surrounding the hollow core, the hollow core having a pressurized gas (argon, Abstract) therein (Title, fig. 2, first sentence of Section 5, etc.), and a diameter of the hollow core region is in a range of 10 µm to 30 µm (18 µm, first sentence of Section 2) and dimensioned such that the radiation pulses have a soliton order that is higher than 16 ("the soliton order is ~27 for 450 nJ pulse energy at 25 bar", Section 4) so as to broaden a spectrum of the pump radiation using modulation instability as the pump radiation propagates along the hollow-core fiber; and providing output broadband radiation from an output end of the hollow core fiber ("emission of dispersive waves", fig. 2). Claim 18: The diameter of the hollow core region is in a range from 16 µm to 22 µm (18 µm). Claim 19: The pulse duration is in a range from 100 fs to 500 fs (140 fs). Claim 20: The pressure of the gas is configured to provide a spectrum of the output broadband radiation having a low-wavelength cut-off in a range from 350 nm to 450 nm, given a particular hollow core region diameter (fig. 1). Claim 21: The hollow core fiber is a hollow core photonic crystal fiber (Abstract; "HC-PCF" in description). Response to Arguments The specification objection and claim rejections of the 3/10/2026 action were overcome by the 3/27/2026 response. Several claims have been rejected under a different reference in the instant action. Conclusion THIS ACTION IS MADE FINAL. Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Allowable Subject Matter Claims 1 and 3-15 remain allowed as set forth in a previous action. Contact Information Examiner: 571-272-2360 Examiner's direct supervisor: 571-272-2397 Official correspondence by fax: 571-273-8300 Information regarding the status of an application may be obtained from Patent Center. Should you have questions about Patent Center, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). /Michael Stahl/Primary Examiner, Art Unit 2874
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Prosecution Timeline

May 30, 2023
Application Filed
Mar 10, 2026
Non-Final Rejection mailed — §102, §112
Mar 27, 2026
Response Filed
May 06, 2026
Final Rejection mailed — §102, §112 (current)

Precedent Cases

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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
90%
Grant Probability
98%
With Interview (+7.5%)
1y 11m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 1256 resolved cases by this examiner. Grant probability derived from career allowance rate.

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