Prosecution Insights
Last updated: May 29, 2026
Application No. 18/666,871

QUANTUM DOT DELIVERY SYSTEM FOR OIL AND GAS WELL TESTING

Final Rejection §101
Filed
May 17, 2024
Priority
Nov 14, 2023 — CN 2023115113251
Examiner
QUIGLEY, KYLE ROBERT
Art Unit
2857
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Sichuan Wewodon Petroleum Technology Co. Ltd.
OA Round
2 (Final)
54%
Grant Probability
Moderate
3-4
OA Rounds
1y 9m
Est. Remaining
87%
With Interview

Examiner Intelligence

Grants 54% of resolved cases
54%
Career Allowance Rate
257 granted / 475 resolved
-13.9% vs TC avg
Strong +33% interview lift
Without
With
+32.6%
Interview Lift
resolved cases with interview
Typical timeline
3y 9m
Avg Prosecution
44 currently pending
Career history
540
Total Applications
across all art units

Statute-Specific Performance

§101
10.8%
-29.2% vs TC avg
§103
73.2%
+33.2% vs TC avg
§102
6.3%
-33.7% vs TC avg
§112
7.7%
-32.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 475 resolved cases

Office Action

§101
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 § 101 35 U.S.C. 101 reads as follows: Whoever invents or discovers any new and useful process, machine, manufacture, or composition of matter, or any new and useful improvement thereof, may obtain a patent therefor, subject to the conditions and requirements of this title. Claims 1-6 are rejected under 35 U.S.C. 101 because the claimed invention is directed to an abstract idea without significantly more. The claim(s) recite(s) the abstract idea of a mathematical algorithm for producing an objective function characterizing the sensors of an oil/gas well quantum dot delivery device [See the second-to-last line of Page 5 of the claim set of 5/17/2024]. This judicial exception is not integrated into a practical application because no improvement to the underlying delivery device or oil/gas well is realized through performance of the algorithm. The claim(s) does/do not include additional elements that are sufficient to amount to significantly more than the judicial exception because the delivery of quantum dots into oil/gas wells for tracing purposes is well-understood, routine, and conventional [See the references cited in the Conclusion section] and the delivery of the quantum dot labeling liquid is needed in order to perform the algorithm (the specifics of the “labeling liquid” amounting to the recitation of a mere field-of-use regarding the application for the algorithm). The recited sensors are necessary to gather the data needed in order to perform the algorithm. The recited client-server edge computer network amounts to the recitation of well-understood, routine, and conventional computer components [See Satoh, 5G-enabled Edge Computing for MapReduce-based Data Pre-processing, IEEE, 2020 and Stankovski et al., The Impact of Edge Computing on Industrial Automation, IEEE, 2020] and does not serve to amount to the recitation of significantly more than the abstract idea itself (see Alice Corp. v. CLS Bank International, 573 U.S. 208 (2014)). The recited additional actions (i.e., “control parameters” and “perform maintenance”) are non-specific and amount to recitations to “use” the algorithm results. The recited “monitoring and display system” and “geographic information system” amount to the recitation of general-purpose computer components in the performance of mere extra-solution activity. Allowable Subject Matter The instant Claims are rejected under 35 USC 101. Were those rejections to be overcome, the following would be a statement of reasons for the indication of allowable subject matter: The prior art of record fails to disclose the specifics regarding the determination and optimization of the objective function per the second-to-last line of Page 5 of the claim set of 5/17/2024, in combination with all other limitations in the claim as claimed and defined by the Applicant. Response to Arguments Applicant argues: PNG media_image1.png 296 787 media_image1.png Greyscale Examiner’s Response: The Examiner agrees. The instant claims are directed to a machine/apparatus. Applicant argues: PNG media_image2.png 294 789 media_image2.png Greyscale PNG media_image3.png 121 786 media_image3.png Greyscale PNG media_image4.png 606 784 media_image4.png Greyscale PNG media_image5.png 509 776 media_image5.png Greyscale Examiner’s Response: The Examiner respectfully disagrees. The claim(s) recite(s) the abstract idea of a mathematical algorithm for producing an objective function characterizing the sensors of an oil/gas well quantum dot delivery device [See the second-to-last line of Page 5 of the claim set of 5/17/2024]. Applicant argues: PNG media_image6.png 685 792 media_image6.png Greyscale PNG media_image7.png 558 787 media_image7.png Greyscale PNG media_image8.png 296 787 media_image8.png Greyscale PNG media_image9.png 428 794 media_image9.png Greyscale PNG media_image10.png 512 786 media_image10.png Greyscale PNG media_image11.png 385 787 media_image11.png Greyscale PNG media_image12.png 516 791 media_image12.png Greyscale Examiner’s Response: The Examiner respectfully disagrees. The judicial exception is not integrated into a practical application because no improvement to the underlying delivery device or oil/gas well is realized through performance of the algorithm. Applicant argues: PNG media_image13.png 338 785 media_image13.png Greyscale PNG media_image14.png 558 793 media_image14.png Greyscale Examiner’s Response: The Examiner respectfully disagrees. The claim(s) does/do not include additional elements that are sufficient to amount to significantly more than the judicial exception because the delivery of quantum dots into oil/gas wells for tracing purposes is well-understood, routine, and conventional [See the references cited in the Conclusion section] and the delivery of the quantum dot labeling liquid is needed in order to perform the algorithm (the specifics of the “labeling liquid” amounting to the recitation of a mere field-of-use regarding the application for the algorithm). The recited sensors are necessary to gather the data needed in order to perform the algorithm. The recited client-server edge computer network amounts to the recitation of well-understood, routine, and conventional computer components [See Satoh, 5G-enabled Edge Computing for MapReduce-based Data Pre-processing, IEEE, 2020 and Stankovski et al., The Impact of Edge Computing on Industrial Automation, IEEE, 2020] and does not serve to amount to the recitation of significantly more than the abstract idea itself (see Alice Corp. v. CLS Bank International, 573 U.S. 208 (2014)). The recited additional actions (i.e., “control parameters” and “perform maintenance”) are non-specific and amount to recitations to “use” the algorithm results. The recited “monitoring and display system” and “geographic information system” amount to the recitation of general-purpose computer components in the performance of mere extra-solution activity. Applicant argues: PNG media_image15.png 687 791 media_image15.png Greyscale PNG media_image16.png 424 782 media_image16.png Greyscale Examiner’s Response: The Examiner respectfully disagrees. The claim(s) recite(s) the abstract idea of a mathematical algorithm for producing an objective function characterizing the sensors of an oil/gas well quantum dot delivery device [See the second-to-last line of Page 5 of the claim set of 5/17/2024]. The judicial exception is not integrated into a practical application because no improvement to the underlying delivery device or oil/gas well is realized through performance of the algorithm. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure: Anopov et al., Production Logging Using Quantum Dots Tracers, SPE, 2019 US 20250109688 A1 – DETERMINING HYDROCARBON PRODUCTION FROM MULTIPLE SUBTERRANEAN FORMATIONS US 20240247581 A1 – SYSTEM AND METHOD FOR TRACKING A STATE OF DISSOLVABLE DOWNHOLE TOOLS US 20240229643 A1 – SYSTEM FOR MEASURING MULTIPHASE FLOW IN DOWNHOLE CONDITIONS AND FLOW REGIMES US 20240159660 A1 – LIGHT CRUDE OIL FLUID IDENTIFICATION WITHIN AN OBM DRILLING FLUID BASE/FILTRATE US 20240093086 A1 – HYDROPHIBIC CARBON-DOTS FOR OIL TRACERS US 20240060417 A1 – OIL FIELD TRACER, METHOD FOR OIL FIELD TRACING, AND PROPPANT COMPOSITION US 20230203361 A1 – WELLBORE STABILITY COMPOSITIONS COMPRISING NANOPARTICLES US 20230151261 A1 – GEL FLUID COMPOSITES COMPRISING NANOSILICA AND QUANTUM DOTS FOR SEALING WATER PRODUCTION IN A WELLBORE US 20230120528 A1 – FLUORESCENT BARCODED QUANTUM DOTS FOR DRILLING DEPTH CORRELATION US 20230059347 A1 – MODIFIED CARBON NANOMATERIALS AS TRACERS FOR RESERVOIR MONITORING US 20220228479 A1 – TRACER RELEASE SYSTEM AND METHOD OF DETECTION US 20220120168 A1 – INTELLIGENTLY CHARACTERIZING RESERVOIRS VIA FLUORESCENT IMAGING ROCK CUTTINGS US 20220098975 A1 – RESERVOIR INFLOW MONITORING US 20170022804 A1 – Methods Of Using Carbon Quantum Dots To Enhance Productivity Of Fluids From Wells US 20170314388 A1 – METHODS OF USING CARBON QUANTUM DOTS TO ENHANCE PRODUCTIVITY OF FLUIDS FROM WELLS US 20160363693 A1 – WELLBORES INCLUDING CARBON QUANTUM DOTS, AND METHODS OF FORMING CARBON QUANTUM DOTS US 20110214488 A1 – COLLOIDAL-CRYSTAL QUANTUM DOTS AS TRACERS IN UNDERGROUND FORMATIONS THIS ACTION IS MADE FINAL. Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to KYLE ROBERT QUIGLEY whose telephone number is (313)446-4879. The examiner can normally be reached 9AM-5PM EST. 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, Arleen Vazquez can be reached at (571) 272-2619. 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. /KYLE R QUIGLEY/Primary Examiner, Art Unit 2857
Read full office action

Prosecution Timeline

May 17, 2024
Application Filed
Nov 17, 2025
Non-Final Rejection (signed) — §101
Jan 09, 2026
Non-Final Rejection mailed — §101
Mar 13, 2026
Response Filed
Apr 08, 2026
Final Rejection mailed — §101 (current)

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
54%
Grant Probability
87%
With Interview (+32.6%)
3y 9m (~1y 9m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 475 resolved cases by this examiner. Grant probability derived from career allowance rate.

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