Prosecution Insights
Last updated: April 19, 2026
Application No. 18/497,599

AUTOMATED DRILLING FLUIDS MIXING SERVICE

Non-Final OA §101
Filed
Oct 30, 2023
Examiner
SURYAWANSHI, SURESH
Art Unit
2116
Tech Center
2100 — Computer Architecture & Software
Assignee
BAKER HUGHES OILFIELD OPERATIONS LLC
OA Round
1 (Non-Final)
88%
Grant Probability
Favorable
1-2
OA Rounds
2y 8m
To Grant
99%
With Interview

Examiner Intelligence

Grants 88% — above average
88%
Career Allow Rate
934 granted / 1058 resolved
+33.3% vs TC avg
Moderate +13% lift
Without
With
+12.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
21 currently pending
Career history
1079
Total Applications
across all art units

Statute-Specific Performance

§101
9.2%
-30.8% vs TC avg
§103
28.7%
-11.3% vs TC avg
§102
34.5%
-5.5% vs TC avg
§112
13.0%
-27.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1058 resolved cases

Office Action

§101
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 . DETAILED ACTION Claims 1-20 are presented for examination. Claim Rejections - 35 USC § 101 2. 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. 3. Claim 20 is rejected under 35 U.S.C. 101 because the claimed invention is directed to non-statutory subject matter. 4. Claim 20 recites “a computer readable storge medium” where the presented specification by applicants does not provide definition of “a computer readable storage medium”. In this instance, applicants have failed to provide antecedent basis for the claim terminology “computer readable storage medium.” Therefore, the question becomes whether non-statutory embodiments would be fairly conveyed to one of ordinary skill given the terminology utilized. In this instance, it would appear to be reasonable to interpret medium for “carrying” as fairly conveying signals and other forms of propagation or transmission media to one of ordinary skill. Applicant may amend the phrase with “non-transitory” to overcome the rejection. For example, applicant may rewrite as “a non-transitory computer readable storage medium” or something similar. Allowable Subject Matter Claims 1-19 allowed because prior art of record individually or in combination does not disclose about determining a chemical mixture for a drilling fluid based on: a first interdependency of a first target property of a set of properties associated with the drilling fluid and a first substance to be added for the chemical mixture; and a second interdependency of the first target property and a second substance to be added for the chemical mixture; and maintaining or updating the chemical mixture based on a first measurement of the first target property, a second measurement of a second target property of the set of properties, or combinations including one of the foregoing. The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. A. US-20250059864 discloses a method for determining drilling fluid properties. B. US-20240328265 discloses an automated drilling manager transmits one or more commands to various control systems in a well system. C. US-20220243544 discloses a method for managing a drilling fluid includes receiving interpolations of an effect on one or more drilling fluid properties based on adding a plurality of additives to a drilling fluid. D. US-20170343969 discloses a method for controlling drilling fluid properties in real-time using predictive models. E. US-20150170087 discloses an interdependent multi-workflow management system may be configured to identify the workflows that are part of an interdependent multi-workflow drilling process. F. US-20140166361 discloses systems and methods for monitoring drilling fluid components in real time. G. US-20080202216 discloses system and method for monitoring and/or controlling attributes of multiple chemical mixtures with a single sensor. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to SURESH K SURYAWANSHI whose telephone number is (571)272-3668. The examiner can normally be reached M-F 8:00-5:00 PM. 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, Kenneth M Lo can be reached at 5712729774. 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. /SURESH SURYAWANSHI/Primary Examiner, Art Unit 2116
Read full office action

Prosecution Timeline

Oct 30, 2023
Application Filed
Jan 13, 2026
Non-Final Rejection — §101
Apr 07, 2026
Response Filed

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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
88%
Grant Probability
99%
With Interview (+12.6%)
2y 8m
Median Time to Grant
Low
PTA Risk
Based on 1058 resolved cases by this examiner. Grant probability derived from career allow rate.

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