Prosecution Insights
Last updated: May 29, 2026
Application No. 19/222,598

Method And Apparatus For Downhole Fluid Microsample Collection With Staged Hydraulic Actuation

Non-Final OA §102§112
Filed
May 29, 2025
Priority
Dec 14, 2023 — divisional of 12/338,733
Examiner
THOMPSON, KENNETH L
Art Unit
3676
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Halliburton Energy Services, Inc.
OA Round
1 (Non-Final)
88%
Grant Probability
Favorable
1-2
OA Rounds
1y 5m
Est. Remaining
94%
With Interview

Examiner Intelligence

Grants 88% — above average
88%
Career Allowance Rate
1025 granted / 1172 resolved
+35.5% vs TC avg
Moderate +7% lift
Without
With
+7.0%
Interview Lift
resolved cases with interview
Typical timeline
2y 5m
Avg Prosecution
22 currently pending
Career history
1186
Total Applications
across all art units

Statute-Specific Performance

§101
1.6%
-38.4% vs TC avg
§103
37.7%
-2.3% vs TC avg
§102
50.8%
+10.8% vs TC avg
§112
4.0%
-36.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1172 resolved cases

Office Action

§102 §112
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 . Election/Restrictions Applicant’s election without traverse of Species I in the reply filed on 9 March 2026 is acknowledged. Claims 15-20 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected Species II, there being no allowable generic or linking claim. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(d): (d) REFERENCE IN DEPENDENT FORMS.—Subject to subsection (e), a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. The following is a quotation of pre-AIA 35 U.S.C. 112, fourth paragraph: Subject to the following paragraph [i.e., the fifth paragraph of pre-AIA 35 U.S.C. 112], a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. Claims 3, 4, 5, 7, 8, 9, 10, 13 and 14 are rejected under 35 U.S.C. 112(d) or pre-AIA 35 U.S.C. 112, 4th paragraph, as being of improper dependent form for failing to further limit the subject matter of the claim upon which it depends, or for failing to include all the limitations of the claim upon which it depends. The base claim sets forth a method of collecting downhole fluid samples. The dependent claims, 3, 4, 5, 7, 8, 9, 10, 13 and 14 introduce limitations to elements that do not contain a reference to the base claim nor specify a further limitation of the subject matter of the base claim to which it refers. The subject matter of the dependent these claims do not refer to the elemental nor methodological limitations of the base claim, and introduces structural elements functionally unrelated to those introduced in the base claim. Applicant may cancel the claim(s), amend the claim(s) to place the claim(s) in proper dependent form, rewrite the claim(s) in independent form, or present a sufficient showing that the dependent claim(s) complies with the statutory requirements. 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. Claims 1, 2, 6 and 11 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Hsu et al., U.S. 9,115,567. Regrading claim 1, Hsu et al. discloses in figure 2 a method of collecting downhole fluid samples (col. 5, lines 11-25) having a fluid sampling tool (multi-sampling tool 56) in a wellbore (fig 1, 36), establishing fluid communication between a formation (fig 1, 12) and the fluid sampling tool (via probe 58) through a fluid passageway (fig 2, flow line 74; col. 5, lines 51-55), establishing fluid communication between the fluid passageway (flow line 74) and a first fluid sampling vessel (any of sample bottles 62; col. 5, lines 55-65), actuating a first valve (any of valves 84) on a hydraulic control line (flowline at sensor 110; col. 7, lines 15-19) to isolate (col. 5, lines 60-65) a fluid inside the first fluid sampling vessel (bottle(s) 62); actuating a second valve (another valve 84) to establish fluid communication between the fluid passageway (74) and a second fluid sampling vessel (another of 62); and actuating the second valve (col. 6, lines 8-21) to isolate the fluid inside the second fluid sampling vessel (any of 62) and the number of valves (84) is larger than a number of actuators (FRV 86; col. 5, line 66 – col. 6, line 21). Re. claim 2, the reference discloses the fluid communication between the fluid passageway (74) and a second fluid sampling vessel (any of 62) includes an alternate hydraulic control line (flowline at sensor 110). As to claim 6, Hsu et al. discloses the fluid sampling tool (56) having more than one sampling vessels (col. 5, lines 22-25) which includes 13 substantially. As to claim 11, Hsu et al. discloses the fluid sampling tool having a manual valve (relief pressure valve associated with port 90; col. 13, lines 35-38) on a bus (flowline of sensor 110) after the first fluid sampling vessel. Allowable Subject Matter Claim 12 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. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to KENNETH L THOMPSON whose telephone number is (571)272-7037. The examiner can normally be reached Weekdays; 9:00-5:00, 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, Tara Schimpf can be reached at 571-270-7741. 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. 21 March 2026 /KENNETH L THOMPSON/Primary Examiner, Art Unit 3676
Read full office action

Prosecution Timeline

May 29, 2025
Application Filed
Apr 02, 2026
Non-Final Rejection mailed — §102, §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12637942
FLUID SEALING FOR DOWNHOLE ACOUSTIC MEASUREMENT TOOL
1y 1m to grant Granted May 26, 2026
Patent 12624622
Cable Management of Electric Powered Hydraulic Fracturing Pump Unit
1y 4m to grant Granted May 12, 2026
Patent 12607093
RETRIEVABLE PACKER APPARATUS
2y 6m to grant Granted Apr 21, 2026
Patent 12601255
Inversion Method to Estimate Fracture Propagation Velocity and Fracture Volume with Cross-Well Distributed Fiber-Optic Strain Data before Fracture Hit
1y 11m to grant Granted Apr 14, 2026
Patent 12590493
HIGH PRESSURE WATER JET AUTOMATIC DRILLING AND CUTTING COLLABORATIVE SYSTEM AND METHOD FOR COAL SEAMS
11m to grant Granted Mar 31, 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
88%
Grant Probability
94%
With Interview (+7.0%)
2y 5m (~1y 5m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1172 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