Prosecution Insights
Last updated: October 02, 2026
Application No. 19/230,612

CRYPTOCURRENCY MINING SYSTEM ARCHITECTURE WITH POWER INPUTS ALIGNED TO PHASE

Non-Final OA §102§103
Filed
Jun 06, 2025
Priority
Jul 30, 2024 — provisional 63/677,224
Examiner
CHANG, JOSEPH
Art Unit
2836
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Block Inc.
OA Round
1 (Non-Final)
90%
Grant Probability
Favorable
1-2
OA Rounds
7m
Est. Remaining
94%
With Interview

Examiner Intelligence

Grants 90% — above average
90%
Career Allowance Rate
1069 granted / 1191 resolved
+21.8% vs TC avg
Minimal +4% lift
Without
With
+3.9%
Interview Lift
resolved cases with interview
Fast prosecutor
1y 11m
Avg Prosecution
20 currently pending
Career history
1208
Total Applications
across all art units

Statute-Specific Performance

§101
2.0%
-38.0% vs TC avg
§103
33.2%
-6.8% vs TC avg
§102
36.9%
-3.1% vs TC avg
§112
14.8%
-25.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1191 resolved cases

Office Action

§102 §103
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)(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(s) 1-2,4-5,8,10-11 and 20 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by McNamara (US 10,608,433). Regarding claims 1 and 20, McNamara discloses a cryptocurrency mining system (Column 33, Lines 19-31; Column 34, Lines 36-49; FIG 6A) and a method comprising: a housing (602, Column 34, Lines 36-49; FIG 6A); a plurality of hashboards received into slots (racks 604) within the housing, wherein the plurality of hashboards each include a plurality of hashing chips that perform hash calculations (Column 33, Lines 19-31; Column 34, Lines 36-49; FIG 6A; “cryptocurrency mining” implies); a control board (Column 32, Lines 17-46) in the housing, wherein the control board allocates the hash calculations among the plurality of hashboards (Column 33, Lines 19-31; Column 34, Lines 36-49; “cryptocurrency mining” implies); a fan (508) that directs a fluid through an interior of the housing (Column 32, Lines 47-58); a power supply unit (502, 506) that supplies power to at least the control board, the fan, and the plurality of hashboards, wherein an amount of power inputs of the power supply unit is aligned to an amount of phases of power (Column 31, Lines 24-26). Regarding claim 2, McNamara discloses the cryptocurrency mining system wherein the hash calculations are used for mining a cryptocurrency (Column 33, Lines 19-31; Column 34, Lines 36-49 “cryptocurrency mining” implies). Regarding claim 4, McNamara discloses a system (FIG 1-14) comprising: a plurality of hashboards, wherein the plurality of hashboards include a plurality of hashing chips that perform hash calculations (Column 33, Lines 19-31; Column 34, Lines 36-49; FIG 6A “cryptocurrency mining” implies); a control board that allocates the hash calculations among the plurality of hashboards (Column 33, Lines 19-31; Column 34, Lines 36-49; FIG 6A “cryptocurrency mining” implies); and a power supply unit (502, 506) that supplies power to at least the control board and the plurality of hashboards, wherein an amount of power inputs of the power supply unit is aligned to an amount of phases of power (Column 31, Lines 24-26). Regarding claim 5, McNamara discloses the system wherein the hash calculations are used for mining a cryptocurrency (Column 33, Lines 19-31; Column 34, Lines 36-49 “cryptocurrency mining” implies). Regarding claim 8, McNamara discloses the system wherein the power supply unit staggers the amount of phases (three phases) of power to smoothen the power supplied from the power supply unit to at least the control board and the plurality of hashboards (Column 33, Lines 19-31; Column 34, Lines 36-49 “cryptocurrency mining” implies). Regarding claim 10, McNamara discloses the system further comprising: a housing (602), wherein the control board (Column 32, Lines 17-46) is in the housing, wherein the power supply unit (502, 506) is in the housing, and wherein the plurality of hashboards are received into slots (racks 604) within the housing . Regarding claim 11, McNamara discloses the system further comprising: a fan (508), wherein the fan directs a fluid through an interior of a housing, wherein the fluid is one of a gas or a liquid. 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, 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. Claim(s) 3,6,7,9,12-19 is/are rejected under 35 U.S.C. 103 as being unpatentable over McNamara. Regarding claims 3, 6, McNamara discloses the cryptocurrency mining system except wherein the plurality of power inputs of the power supply unit being aligned to the plurality of phases of power reduces triple harmonics. As recognized by one of ordinary skill in the art, the power supply unit of McNamara is capable of reduce triple harmonic and therefore, it would have been obvious to one of ordinary skill in the art. Regarding claim 7, McNamara discloses the system except wherein the power supply unit includes a low dropout regulator (LDO). As known in the art, such LDO is used in power supply units for stability and therefore, it would have been obvious to one of ordinary skill in the art to use such regulator for stability. Regarding claim 9, McNamara discloses the system except wherein the power supply unit is part of at least one of the plurality of hashboards. As known in the art, such power supply unit is used in cryptocurrency mining and therefore, it would have been obvious to one of ordinary skill in the art to use such configuration for stable and safe for sensitive electronics. Regarding claim 12, McNamara discloses the system except wherein the control board predictively switches a configuration of the plurality of hashboards based on a predicted event, wherein the predicted event is at least one of a weather event or an electrical grid event. As known in the art, such predictively switching control board is used in cryptocurrency mining and therefore, it would have been obvious to one of ordinary skill in the art to use such configuration because such a modification would have been a mere substitution of art recognized equivalent power supply scheme. Regarding claim 13, McNamara discloses the system except wherein the control board predictively switching the configuration of the plurality of hashboards includes the control board modifying which of the plurality of hashboards receives power from the power supply unit. As known in the art, such predictively switching control board is used in cryptocurrency mining and therefore, it would have been obvious to one of ordinary skill in the art to use such configuration because such a modification would have been a mere substitution of art recognized equivalent power supply scheme. Regarding claim 14, McNamara discloses the system except wherein the control board predictively switching the configuration of the plurality of hashboards includes the control board modifying which hashing chips receive power from the power supply unit. As known in the art, such predictively switching control board is used in cryptocurrency mining and therefore, it would have been obvious to one of ordinary skill in the art to use such configuration because such a modification would have been a mere substitution of art recognized equivalent power supply scheme. Regarding claim 15, McNamara discloses the system except wherein the power supply unit includes a phase-locked loop (PLL) and a voltage-controlled oscillator (VCO). As known in the art, such power supply unit is used for stability and therefore, it would have been obvious to one of ordinary skill in the art to use such power supply for stability. Regarding claim 16, McNamara discloses the system except wherein the plurality of hashboards includes a phase-locked loop (PLL) and a voltage-controlled oscillator (VCO). As known in the art, such hashboards are used for stability and therefore, it would have been obvious to one of ordinary skill in the art to use such hashboards for stability. Regarding claim 17, McNamara discloses the system except wherein the plurality of hashing chips is a plurality of application specific integrated circuits (ASICs). As known in the art, such ASIC chips are used in cryptocurrency mining for speed and therefore, it would have been obvious to one of ordinary skill in the art to use such chips for speed. Regarding claim 18, McNamara discloses the system except further comprising: a sensor that measures a characteristic of at least a subset of the plurality of hashing chips of the plurality of hashboards. As known in the art, such sensor is used for monitoring and measuring for stability and therefore, it would have been obvious to one of ordinary skill in the art to use such sensor for monitoring for stability. Regarding claim 19, McNamara discloses the system except further comprising: an indicator interface with a plurality of light sources, wherein an illumination characteristic of at least one of the plurality of light sources changes in response to identification of a condition associated with at least one of the control board, the power supply unit, or the plurality of hashboards. As known in the art, such indicator interface is used cryptocurrency mining and therefore, it would have been obvious to one of ordinary skill in the art to use such interface for stability. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. L’ecuyer (US 2023/0389237) discloses a power distribution unit showing a housing, power supply, cooling system which may be used for cryptocurrency mining. Anokhin (US 2020/0012579) discloses a power supply unit for cryptocurrency mining showing hashboards, sensors, a control microcomputer. Any inquiry concerning this communication or earlier communications from the examiner should be directed to Joseph Chang whose telephone number is (571)272-1759. The examiner can normally be reached M-F 7:00- 17:00. 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, Menatoallah M Youssef can be reached at 571-270-3684. 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. /JOSEPH CHANG/ Primary Examiner, Art Unit 2836
Read full office action

Prosecution Timeline

Jun 06, 2025
Application Filed
Jul 16, 2025
Response after Non-Final Action
Jul 21, 2026
Non-Final Rejection mailed — §102, §103
Sep 23, 2026
Interview Requested

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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
90%
Grant Probability
94%
With Interview (+3.9%)
1y 11m (~7m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1191 resolved cases by this examiner. Grant probability derived from career allowance rate.

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