Prosecution Insights
Last updated: October 02, 2026
Application No. 18/800,594

SEMICONDUCTOR NANOPARTICLES, METHOD FOR PRODUCING SEMICONDUCTOR NANOPARTICLES, AND LIGHT EMITTER

Non-Final OA §112
Filed
Aug 12, 2024
Priority
Feb 16, 2022 — JP 2022-022208 +2 more
Examiner
KOSLOW, CAROL M
Art Unit
Tech Center
Assignee
Murata Manufacturing Co., Ltd.
OA Round
1 (Non-Final)
82%
Grant Probability
Favorable
1-2
OA Rounds
5m
Est. Remaining
94%
With Interview

Examiner Intelligence

Grants 82% — above average
82%
Career Allowance Rate
1805 granted / 2211 resolved
+21.6% vs TC avg
Moderate +12% lift
Without
With
+12.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
48 currently pending
Career history
2230
Total Applications
across all art units

Statute-Specific Performance

§101
2.6%
-37.4% vs TC avg
§103
27.2%
-12.8% vs TC avg
§102
15.5%
-24.5% vs TC avg
§112
40.5%
+0.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 2211 resolved cases

Office Action

§112
Specification The lengthy specification has not been checked to the extent necessary to determine the presence of all possible minor errors. Applicant’s cooperation is requested in correcting any errors of which applicant may become aware in the specification. The disclosure is objected to because of the following informalities: The specification teaches the compound semiconductor mainly containing Ag, Ge and S. It is unclear if the phrase “mainly containing” means the compound semiconductor composition is inclusive or open-ended and does not exclude additional, unrecited elements; or if it is a synonym for “consisting essentially of “ and limits the scope of the compound semiconductor composition to the specified materials and those that do not materially affect the basic and novel characteristics of the claimed invention. It is noted that the disclosed process and the examples teach Ag-Ge-S compound semiconductor, which means the compound semiconductor consists of Ag, Ge and S. Appropriate correction is required. 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. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claims 1-10 and 28 are 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 1-9 define the compound semiconductor as mainly containing Ag, Ge and S. It is unclear if the phrase “mainly containing” means the compound semiconductor composition is inclusive or open-ended and does not exclude additional, unrecited elements; or if it is a synonym for “consisting essentially of “ and limits the scope of the compound semiconductor composition to the specified materials and those that do not materially affect the basic and novel characteristics of the claimed invention. Therefore these claims are indefinite. Claim 28 includes the compound semiconductor of claim 1 and thus is also indefinite for the reasons why claim 1 is indefinite. Claim 10 recites the limitation "the Ag component" and “the Ge component” in lines 4-5. There is insufficient antecedent basis for this limitation in the claim. It is suggested to delete “the” from "the Ag component" and “the Ge component” to overcome this rejection. Allowable Subject Matter Claims 11-27 are allowed. Claims 1-10 and 28 would be allowable if rewritten or amended to overcome the rejection(s) under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), 2nd paragraph, set forth in this Office action. There is no teaching or suggestion in the art of record of producing Ag-Ge-S semiconductor nanoparticles by the claimed process, wherein the molar ratio of Ag to Ge in the produced Ag-Ge-S is 1 to less than 7.5 and the produced nanoparticles have an average size of 9 nm or less. There is no teaching or suggestion in the art of record of semiconductor nanoparticles comprising a compound semiconductor of silver, germanium and sulfur, wherein the molar ratio of Ag to Ge in the compound semiconductor is 1 to less than 7.5 and the nanoparticles have an average size of 9 nm or less. The closest art of record is the McKeown et al article which teaches a compound semiconductor having the formula Ag2SrGeS4. While this reference teaches a compound semiconductor mainly containing Ag, Ge and S and the taught compound semiconductor has a molar ratio of Ag:Ge of 2:1; there is no teaching or suggestion that the taught compound semiconductor is in the form of nanoparticles nor is there any teaching or suggestion to form nanoparticles of the taught compound semiconductor is in the form of nanoparticles. Any inquiry concerning this communication or earlier communications from the examiner should be directed to C. MELISSA KOSLOW whose telephone number is (571)272-1371. The examiner can normally be reached Mon-Tues:7:45-3:45 EST;Thurs-Fri:6:30-2:00EST; and Wed:7:45-2:00EST. 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, Jonathan Johnson can be reached at 571-272-1177. 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. /C Melissa Koslow/Primary Examiner, Art Unit 1734 cmk 9/3/26
Read full office action

Prosecution Timeline

Aug 12, 2024
Application Filed
Sep 08, 2026
Non-Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12751118
Display Device
3y 9m to grant Granted Sep 29, 2026
Patent 12735631
LIGHT-EMITTING COMPOSITION COMPRISING AN ORGANOSILOXANE SOLVENT AND PEROVSKITE NANOPARTICLES, AND A METHOD FOR PRODUCING THE SAME
4y 5m to grant Granted Sep 15, 2026
Patent 12735629
PHOSPHORESCENT ELASTOMER MASTER MIXTURE AND HOROLOGICAL COMPONENT COMPRISING SUCH A MIXTURE
3y 8m to grant Granted Sep 15, 2026
Patent 12735639
PHOSPHOR POWDER, WAVELENGTH CONVERSION BODY, AND LIGHT EMITTING DEVICE
3y 1m to grant Granted Sep 15, 2026
Patent 12713832
FLEXIBLE AND LOW COST PIEZOELECTRIC COMPOSITES WITH HIGH D33 VALUES
2y 2m to grant Granted Aug 18, 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

1-2
Expected OA Rounds
82%
Grant Probability
94%
With Interview (+12.2%)
2y 7m (~5m remaining)
Median Time to Grant
Low
PTA Risk
Based on 2211 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