Prosecution Insights
Last updated: September 17, 2026
Application No. 17/999,222

USE OF AUTOMATED PLATFORMS FOR PREPARATION OF BIOMARKER AND ROMANOWSKY-TYPE STAINED SAMPLE PRINTED ON A SLIDE

Non-Final OA §112
Filed
Nov 18, 2022
Priority
May 20, 2020 — provisional 63/027,720 +2 more
Examiner
KRCHA, MATTHEW D
Art Unit
1796
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Roche Diagnostics Hematology Inc.
OA Round
2 (Non-Final)
65%
Grant Probability
Moderate
2-3
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 65% of resolved cases
65%
Career Allowance Rate
366 granted / 565 resolved
At TC average
Strong +35% interview lift
Without
With
+35.1%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
63 currently pending
Career history
639
Total Applications
across all art units

Statute-Specific Performance

§101
1.8%
-38.2% vs TC avg
§103
52.2%
+12.2% vs TC avg
§102
17.8%
-22.2% vs TC avg
§112
25.2%
-14.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 565 resolved cases

Office Action

§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 . Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after allowance or after an Office action under Ex Parte Quayle, 25 USPQ 74, 453 O.G. 213 (Comm'r Pat. 1935). Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, prosecution in this application has been reopened pursuant to 37 CFR 1.114. Applicant's submission filed on 2/19/2026 has been entered. Information Disclosure Statement The information disclosure statement (IDS) submitted on 2/19/2026 is in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement is being considered by the examiner. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claim 24 is rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Claim 24 recites the limitation "the one or more additional bio-marker specific reagents comprises" in lines 1-2. There is insufficient antecedent basis for this limitation in the claim. For examination purposes, it is interpreted “the one or more biomarker-specific reagents further comprises…” Allowable Subject Matter Claims 1-4, 6-11, 23, 25, 26 and 28-33 are allowed. The following is an examiner’s statement of reasons for allowance: The closest prior art of record is Stefanovic et al., Romanowsky-Giemsa as a counterstain for immunohistochemistry: optimizing a traditional reagent; Informa Healthcare, The Biological Stain Commission; Biotechnic & Histochemistry, 2- 13, Vol. 88, No. 6, pp. 329-335 which teaches a method which contacts a cell sample with a fluorescent label biomarker-specific reagent, depositing the sample on a solid support, analyzing the sample, staining the sample and analyzing the stained sample. However, the prior art does not disclose, teach or suggest the claimed combination of the biomarker-specific reagent comprise a fluorescent label. Any comments considered necessary by applicant must be submitted no later than the payment of the issue fee and, to avoid processing delays, should preferably accompany the issue fee. Such submissions should be clearly labeled “Comments on Statement of Reasons for Allowance.” Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to MATTHEW D KRCHA whose telephone number is (571)270-0386. The examiner can normally be reached M-Th 7am-5pm. 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, Elizabeth Robinson can be reached at (571)272-7129. 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. /MATTHEW D KRCHA/Primary Examiner, Art Unit 1796
Read full office action

Prosecution Timeline

Nov 18, 2022
Application Filed
Oct 31, 2023
Response after Non-Final Action
Jul 30, 2025
Non-Final Rejection mailed — §112
Oct 30, 2025
Response Filed
Feb 19, 2026
Request for Continued Examination
Mar 01, 2026
Response after Non-Final Action
Jul 15, 2026
Non-Final Rejection mailed — §112 (current)

Precedent Cases

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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
65%
Grant Probability
99%
With Interview (+35.1%)
3y 3m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 565 resolved cases by this examiner. Grant probability derived from career allowance rate.

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