Prosecution Insights
Last updated: April 19, 2026
Application No. 18/009,002

CASSETTE STAND, REACTION UNIT, AND GENETIC TESTING APPARATUS

Final Rejection §112
Filed
Dec 08, 2022
Examiner
HYUN, PAUL SANG HWA
Art Unit
1796
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Hitachi High-Tech Corporation
OA Round
2 (Final)
70%
Grant Probability
Favorable
3-4
OA Rounds
3y 5m
To Grant
99%
With Interview

Examiner Intelligence

Grants 70% — above average
70%
Career Allow Rate
582 granted / 834 resolved
+4.8% vs TC avg
Strong +36% interview lift
Without
With
+36.0%
Interview Lift
resolved cases with interview
Typical timeline
3y 5m
Avg Prosecution
38 currently pending
Career history
872
Total Applications
across all art units

Statute-Specific Performance

§101
1.0%
-39.0% vs TC avg
§103
38.5%
-1.5% vs TC avg
§102
23.0%
-17.0% vs TC avg
§112
31.0%
-9.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 834 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 . Response to Amendment The amendment filed on January 22, 2026 is acknowledged. Claims 1-20 are pending. Applicant amended claims 1-3, 8 and 10-15, and added new claims 16-20. Response to Arguments Applicant’s arguments with respect to the patentability of the claims have been considered but they are moot. The amendment necessitated the new grounds of rejection set forth below. Claim Rejections - 35 USC § 112 The text of those sections of Title 35, U.S. Code not included in this action can be found in a prior Office action. Claim 19 is rejected under 35 U.S.C. 112(b) as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor regards as the invention. Claim 19 recites “both sides of a circular opening”. A circle does not comprise sides, let alone two as suggested by the limitation “both”. Consequently, the scope of the recitation “both sides of a circular opening” is indefinite. It appears that the recitation should be “opposing arcs of a circular opening”. In addition, claim 19 contradicts subject matter recited in claim 2, a claim from which claim 19 depends. Specifically, claim 2 specifies that for each lane of test tubes, there is a ventilation opening extending along the lane, meaning claim 2 establishes a one-to-one correspondence between lane and ventilation opening. However, because claim 19 recites that each circular opening is associated with a pair of vertical openings on “both sides” of the circular opening, and further specifies that each vertical opening communicates with a ventilation opening, claim 19 establishes a correspondence that deviates from the ratio established in claim 2 (i.e. according to claim 19, there is a ventilation opening along both sides of each lane) (e.g. see Fig. 12). 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. Claim 13 is rejected under 35 U.S.C. 112(d) as being of improper dependent form for failing to further limit the subject matter of the claim upon which it depends. All of the limitations recited in claim 13 are recited in claim 2, a claim from which claim 13 depends. Consequently, claim 13 does not further limit claim 2. Applicant may cancel the claim, amend the claim to place the claim in proper dependent form, or present a sufficient showing that the dependent claim complies with the statutory requirements. Allowable Subject Matter Claims 1-12, 14-18 and 20 are allowed. In addition, claim 19 may be allowable if it is amended to overcome the rejection under 35 U.S.C. 112(b) set forth in this Office action. An attempt was made to contact Brandon Theiss to obviate the issues above via an examiner’s amendment. However, the attempt was not successful. The following is a statement of reasons for the indication of allowable subject matter: Hu et al. “(Hu”) (CN 201799446 U) discloses a cassette stand comprising (see Fig. 1): a body 3 defining an internal space; an upper surface 2 of the body 3 configured to support a test tube unit having a plurality of test tubes, the upper surface being provided with a plurality of circular openings (a subset of holes 5 illustrated in Fig. 1); a ventilation opening (one opening of another subset of holes 5), and an exhaust fan 4 installed in or connected to a lateral surface of the body 3 and configured to exhaust gas from the internal space, wherein the exhaust fan 4 sets an internal space to a negative pressure and generates a stream of gas towards the ventilation opening 5 (see abstract). However, the circular openings 5 do not appear to have a size capable of receiving test tubes, as recited in independent claims 1 and 2, and based on the disclosure of Hu, there is no motivation to modify the size of the circular openings 5 to arrive at the claimed inventions. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). 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 PAUL S HYUN whose telephone number is (571)272-8559. The examiner can normally be reached M-F 8:30-5:00. 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, Luan Van can be reached at 571-272-8521. 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 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. /PAUL S HYUN/Primary Examiner, Art Unit 1796
Read full office action

Prosecution Timeline

Dec 08, 2022
Application Filed
Oct 27, 2025
Non-Final Rejection — §112
Jan 22, 2026
Response Filed
Mar 11, 2026
Final Rejection — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12599127
VITRIFICATION DEVICE AND METHOD FOR PREPARING SAMPLE
2y 5m to grant Granted Apr 14, 2026
Patent 12599906
CONTAINER FOR SMALL LIQUID VOLUMES
2y 5m to grant Granted Apr 14, 2026
Patent 12590508
MANIPULATION OF FLUIDS, FLUID COMPONENTS AND REACTIONS IN MICROFLUIDIC SYSTEMS
2y 5m to grant Granted Mar 31, 2026
Patent 12558684
ELECTRONIC DEVICE
2y 5m to grant Granted Feb 24, 2026
Patent 12551888
DEVICES AND METHODS FOR EXTRACTION, SEPARATION AND THERMOCYCLING
2y 5m to grant Granted Feb 17, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

3-4
Expected OA Rounds
70%
Grant Probability
99%
With Interview (+36.0%)
3y 5m
Median Time to Grant
Moderate
PTA Risk
Based on 834 resolved cases by this examiner. Grant probability derived from career allow 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