Prosecution Insights
Last updated: April 19, 2026
Application No. 18/767,216

Delay Lock Loop Circuits and Methods for Operating Same

Non-Final OA §102
Filed
Jul 09, 2024
Examiner
HOUSTON, ADAM D
Art Unit
2842
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Taiwan Semiconductor Manufacturing Company Ltd.
OA Round
2 (Non-Final)
89%
Grant Probability
Favorable
2-3
OA Rounds
1y 10m
To Grant
87%
With Interview

Examiner Intelligence

Grants 89% — above average
89%
Career Allow Rate
559 granted / 629 resolved
+20.9% vs TC avg
Minimal -2% lift
Without
With
+-2.2%
Interview Lift
resolved cases with interview
Fast prosecutor
1y 10m
Avg Prosecution
13 currently pending
Career history
642
Total Applications
across all art units

Statute-Specific Performance

§101
2.2%
-37.8% vs TC avg
§103
40.5%
+0.5% vs TC avg
§102
45.2%
+5.2% vs TC avg
§112
7.7%
-32.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 629 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 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 and 8 are rejected under 35 U.S.C. 102(a)(2) as being anticipated by GB 2498946 (Machado). For claim 1, Machado figure 1 teaches a circuit comprising: a tuning element (the digital tuned VCO); and a decoder element (CP) configured to receive a phase signal (output of PFD) that is generated based on a first clock signal (Reference) and a second clock signal (Feedback) and to generate a control word (see, e.g., abstract, “the charge pump / loop filter and, from this signal, generating a digital control word for regulating the frequency of the voltage controlled oscillator (VCO).”) corresponding that is provided to the tuning element. For claim 8, Machado further teaches a decoder having the decoder element, wherein the decoder is configured to receive [[a]] the phase signal and to generate a digital the control word, and a delay element (VCO comprises of delay elements) having the tuning element is configured to receive the digital control word and to change a relationship between the first and second clock signals (second clock signal changes as the VCO output changes, so the relationship between the reference clock and feedback clock changes). Allowable Subject Matter Claims 2-5, and 7 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. Claims 21-33 are allowed. The following is a statement of reasons for the indication of allowable subject matter: None of the prior art of record teaches the limitation of the phase comparator accumulating phase information. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ADAM D HOUSTON whose telephone number is (571)270-3901. The examiner can normally be reached M-F 10-7 CST. 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, Lincoln Donovan can be reached at (571) 272-1988. 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. /ADAM D HOUSTON/ Primary Examiner, Art Unit 2842
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Prosecution Timeline

Jul 09, 2024
Application Filed
Dec 07, 2025
Non-Final Rejection — §102
Mar 05, 2026
Response Filed
Mar 27, 2026
Non-Final Rejection — §102 (current)

Precedent Cases

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Patent 12587197
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Patent 12581578
A PROTECTION CIRCUIT FOR USE IN A LIGHTING CIRCUIT
2y 5m to grant Granted Mar 17, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

2-3
Expected OA Rounds
89%
Grant Probability
87%
With Interview (-2.2%)
1y 10m
Median Time to Grant
Moderate
PTA Risk
Based on 629 resolved cases by this examiner. Grant probability derived from career allow rate.

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