Prosecution Insights
Last updated: April 19, 2026
Application No. 18/437,260

400G SILICON PHOTONIC INTEGRATED OPTICAL MODULE WITH PHOTOELECTRIC INTEGRATED SUBSTRATE

Non-Final OA §112
Filed
Feb 09, 2024
Examiner
STAHL, MICHAEL J
Art Unit
2874
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Shunyun Technology (Zhongshan) Limited
OA Round
1 (Non-Final)
90%
Grant Probability
Favorable
1-2
OA Rounds
2y 2m
To Grant
97%
With Interview

Examiner Intelligence

Grants 90% — above average
90%
Career Allow Rate
1122 granted / 1246 resolved
+22.0% vs TC avg
Moderate +7% lift
Without
With
+7.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 2m
Avg Prosecution
36 currently pending
Career history
1282
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
22.4%
-17.6% vs TC avg
§102
41.8%
+1.8% vs TC avg
§112
29.8%
-10.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1246 resolved cases

Office Action

§112
DETAILED ACTION 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 Objection Claim 8 is objected to because lines 4-6 recite that the laser assembly has a "photo detector active area". It is believed that this may be a typo since it is not clear why a laser assembly (i.e., a light emitting device) would have a "photo detector" active area. Accordingly, it appears that in line 5, "photo detector" should be deleted and "a" should be replaced with "an". 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. Claims 1-10 are 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 1 is indefinite because there is insufficient antecedent basis for "the other side of the recessed groove" as recited in lines 7 and 9. The earlier text of claim 1 does not establish that the recessed groove has only two sides. Claim 1 could be clarified by replacing "the other side" with "another side" in each of lines 7 and 9. Claims 2-10 are indefinite by dependence from claim 1. Claim 6 is also indefinite because line 5 recites "the locating groove" but lines 2-3 recite a plurality of locating grooves. It appears that "the locating groove" should be replaced with "each locating groove" in line 5. Allowable Subject Matter Claims 1-10 would be allowable if the indefiniteness issues mentioned above are resolved (and for claim 8, if it is amended to overcome the informality objection). US 2023/0194808 A1 is regarded as the closest prior art of record. '808 discloses a module including a PCB substrate 201, a fiber array 210, a detector assembly 107-1, a laser assembly 204-1, and a silicon substrate 203 including optical waveguides 105 / 106, the silicon substrate being attached in a recessed groove 215 in the PCB substrate. However, '808 does not disclose or suggest at least a surface circuit board mounted at an upper side of the silicon substrate; a fiber port of the fiber array being provided with a light reflecting surface; a first microlens located directly below the light reflecting surface; or a second microlens located directly below the detector assembly or the laser assembly. There is no apparent motivation or suggestion to substantially redesign the '808 device in order to add these extra elements in the recited positions. Conclusion The additional references listed on the attached 892 form disclose other examples of optical modules associated with a PCB. 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
Read full office action

Prosecution Timeline

Feb 09, 2024
Application Filed
Mar 18, 2026
Non-Final Rejection — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12596234
OPTICAL MODULE AND OPTICAL CONNECTOR CABLE
2y 5m to grant Granted Apr 07, 2026
Patent 12591093
FACILITATING OPTICAL COUPLING AND BEAM COLLIMATION IN PHOTONIC INTEGRATED CIRCUITS
2y 5m to grant Granted Mar 31, 2026
Patent 12585117
WAVEGUIDE FOR AUGMENTED REALITY OR VIRTUAL REALITY DISPLAY
2y 5m to grant Granted Mar 24, 2026
Patent 12587002
CONDUIT AND METHOD FOR LAYING CABLE
2y 5m to grant Granted Mar 24, 2026
Patent 12585061
LIGHT-EMITTING MODULE
2y 5m to grant Granted Mar 24, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

1-2
Expected OA Rounds
90%
Grant Probability
97%
With Interview (+7.4%)
2y 2m
Median Time to Grant
Low
PTA Risk
Based on 1246 resolved cases by this examiner. Grant probability derived from career allow 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