Prosecution Insights
Last updated: April 19, 2026
Application No. 18/613,200

OPTICAL COMMUNICATION SYSTEM

Non-Final OA §102§103§112
Filed
Mar 22, 2024
Examiner
WOLDEKIDAN, HIBRET ASNAKE
Art Unit
2635
Tech Center
2600 — Communications
Assignee
Dasan Network Solutions Inc.
OA Round
1 (Non-Final)
86%
Grant Probability
Favorable
1-2
OA Rounds
2y 5m
To Grant
99%
With Interview

Examiner Intelligence

Grants 86% — above average
86%
Career Allow Rate
719 granted / 837 resolved
+23.9% vs TC avg
Moderate +13% lift
Without
With
+13.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 5m
Avg Prosecution
20 currently pending
Career history
857
Total Applications
across all art units

Statute-Specific Performance

§101
3.8%
-36.2% vs TC avg
§103
53.1%
+13.1% vs TC avg
§102
19.2%
-20.8% vs TC avg
§112
14.3%
-25.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 837 resolved cases

Office Action

§102 §103 §112
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 Rejections - 35 USC § 112 Claims 1-3 rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Claims 1-3 stated N-channels. However, the value or range of N is not defined in the claims or in the specification making the claims indefinite. 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. Claim 1 is rejected under 35 U.S.C. 102 (a)(1) as being anticipated by Akimoto et al.(US 2003/0039010 A1). Considering claim 1 Akimoto discloses an optical communication system comprising: a multi-channel light source device configured to provide light source signals of N channels by splitting a non-modulated light signal with a first carrier wavelength of one laser diode (LD) into N channels(See Paragraph 87,140, fig. 9,15 i.e. a multi-channel light source device(which is multi-wavelength light source (28 of fig. 9) and arrayed waveguide grating filter(27-2 of fig. 9)) configured to provide light source signals of N channels(λd1….λdn of fig. 9) by splitting a non-modulated light signal(continuous waves) with a first carrier wavelength of one laser diode (LD)(fig. 15 further illustrates the multi-wavelength light source(28) has multiple lasers(232 of fig. 15)) into N channels(λd1….λdn of fig. 9); and an optical communication device comprising a light signal receiver configured to photoelectrically convert a reception light signal received from an external light signal interface device through an optical fiber and transmit the converted signal to a communication signal processor(See Paragraph 89,90,97 fig. 9 i.e. an optical communication device which is an optical transceiver package(61) comprising a light signal receiver(23 of fig. 9) configured to photoelectrically convert a reception light signal received from an external light signal interface device(25) through an optical fiber(32 of fig. 9) and transmit the converted signal to a communication signal processor(21,24 of fig. 9)) and a light signal transmitter configured to modulate a data signal received from the communication signal processor into transmission light signals of N channels using the light source signals of N channels received from the external multi-channel light source device and transmit the modulated transmission light signals of N channels to the external light signal interface device through optical fibers (See Paragraph 90,93,97, fig. 9 i.e. a light signal transmitter which is optical modulator(26) configured to modulate a data signal received from the communication signal processor(21,24) into transmission light signals of N channels using the light source signals of N channels received from the external multi-channel light source device(28,27-2) and transmit the modulated transmission light signals of N channels to the external light signal interface device(25) through optical fibers(32)). 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 of this title, 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 2,3 are rejected under 35 U.S.C. 103 as being unpatentable over Akimoto et al.(US 2003/0039010). Considering claim 2 Akimoto discloses the optical communication system of claim 1, wherein the multi-channel light source device(230) provides the light source signals of N channels(λd1…λdn) by splitting using AWG(27-2) non-modulated light signals (CW lights output from light sources(232)) with different carrier wavelengths output from a plurality of LDs which are light sources(232) into N channels(λd1…λdn) (See Paragraph 138, fig. 15). Akimoto does not explicitly disclose wavelengths output from two LDs into N/2 channels. However, It would have been obvious to one of ordinary skill in the art before the effective filing date of the invention to have modified Akimoto such that wavelengths output from two LDs into N/2 channels or any number of channels because such a modification would have been considered a mere design consideration which fails to patentably distinguish over Akimoto. Considering claim 3 Akimoto discloses the optical communication system of claim 1, wherein the multi-channel light source device(230) provides the light source signals of N channels(λd1…λdn) by splitting using AWG(27-2) non-modulated light signals (CW lights output from light sources(232)) with different carrier wavelengths output from a plurality of LDs which are light sources(232) into N channels(λd1…λdn) (See Paragraph 138, fig. 15). Akimoto does not explicitly disclose wavelengths output from four LDs into N/4 channels. However, It would have been obvious to one of ordinary skill in the art before the effective filing date of the invention to have modified Akimoto such that wavelengths output from four LDs into N/4 channels or any number of channels because such a modification would have been considered a mere design consideration which fails to patentably distinguish over Akimoto. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to HIBRET A WOLDEKIDAN whose telephone number is (571)270-5145. The examiner can normally be reached 9-5:30. 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, DAVID C PAYNE can be reached at (571)272-3024. 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. /HIBRET A WOLDEKIDAN/Primary Examiner, Art Unit 2635
Read full office action

Prosecution Timeline

Mar 22, 2024
Application Filed
Jan 22, 2026
Non-Final Rejection — §102, §103, §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

1-2
Expected OA Rounds
86%
Grant Probability
99%
With Interview (+13.4%)
2y 5m
Median Time to Grant
Low
PTA Risk
Based on 837 resolved cases by this examiner. Grant probability derived from career allow rate.

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