Prosecution Insights
Last updated: April 19, 2026
Application No. 18/583,435

APPARATUS FOR PRODUCING ALN WHISKERS

Non-Final OA §103
Filed
Feb 21, 2024
Examiner
KUNEMUND, ROBERT M
Art Unit
1714
Tech Center
1700 — Chemical & Materials Engineering
Assignee
National University Corporation Tokai National Higher Education And Research System
OA Round
1 (Non-Final)
82%
Grant Probability
Favorable
1-2
OA Rounds
3y 0m
To Grant
96%
With Interview

Examiner Intelligence

Grants 82% — above average
82%
Career Allow Rate
1065 granted / 1301 resolved
+16.9% vs TC avg
Moderate +14% lift
Without
With
+14.2%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
37 currently pending
Career history
1338
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
60.4%
+20.4% vs TC avg
§102
11.6%
-28.4% vs TC avg
§112
9.3%
-30.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1301 resolved cases

Office Action

§103
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 . The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. This application currently names joint inventors. In considering patentability of the claims the examiner presumes that the subject matter of the various claims was commonly owned as of the effective filing date of the claimed invention(s) absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and effective filing dates of each claim that was not commonly owned as of the effective filing date of the later invention in order for the examiner to consider the applicability of 35 U.S.C. 102(b)(2)(C) for any potential 35 U.S.C. 102(a)(2) prior art against the later invention. Claim 1 and 3 is/are rejected under 35 U.S.C. 103 as being unpatentable over Koutitsu et al (2016/0108554) in view of Narasimhan (5094711) The Koukitsu et al reference teaches an apparatus for growth of aluminum nitrides, note entire reference. The apparatus consists of a material accommodation unit, or source, which can contain aluminum, figure 1, no.4. There is a first heating unit to heat the accommodation unit, no. 5. Further, the apparatus has a reaction chamber which contains a substrate, no. 9. There is a communication port to allow the aluminum to flow into the reactor, no 6 and 13 and para 0024 to 0032. There are further means to allow other materials to flow into the reactor chamber, no 7 and 11. The sole difference between the instant claims and the prior art is the number of substrates. However, Narasimhan reference teaches an apparatus for whisker growth with multiple substrates, fig 1 no. 25 and supplying the materials below the substrate via a communications portion, note fig 1, no. 19. It would have been obvious to one of ordinary skill in the art before the filing date of the instant invention to modify the Koukitsu et al apparatus by the teachings of the Narasimhan reference to include more than one substrate in order to increase the yield of material per run and to flow from under the substrates to increase a uniform flow over all substrates. With regards to claim 3, the Koukitsu et al reference teaches two heating units figure 1, no.10 and 13. Claim 2 is/are rejected under 35 U.S.C. 103 as being unpatentable over Koutitsu et al (2106/0108554) in view of Narasimhan (5094711). The Koukitsu et al and Narasimhan references are relied on for the same reasons as stated, supra, and differs from the instant claim in the use of one heater. However, in the absence of unexpected results, it would have been obvious to one of ordinary skill in the art before the filing date of the instant invention to determine through routine experimentation, the optimum, operable design of the apparatus in the Koukitsu et al reference to operate with only one heater in order to control the vaporization and deposition. Claim 4 is/are rejected under 35 U.S.C. 103 as being unpatentable over Koutitsu et al (2106/0108554) in view of Narasimhan (5094711). The Koukitsu et al and Narasimhan references are relied on for the same reasons as stated, supra, and differs from the instant claim in the shut off valve. However, in the absence of unexpected results, it would have been obvious to one of ordinary skill in the art before the filing date of the instant invention to determine through routine experimentation, the optimum, operable design of the apparatus in the Koukitsu et al reference to include shut off valves in the communications ports in order to control gas flow and stop the process. Claim 5 to 7 is/are rejected under 35 U.S.C. 103 as being unpatentable over Koutitsu et al (2106/0108554) in view of Narasimhan (5094711). The Koukitsu et al reference is relied on for the same reasons as stated, supra, and differs from the instant claim in the placement of the accommodation unit. However, the Narasimhan et al reference shows the reactants entering the reactor from below, the source is placed vertically below the reactor, note fig 1. It would have been obvious to one of ordinary skill in the art before the filing date of the instant invention to modify the Koukitsu et al apparatus by the teachings of the Narasimhan reference to have the source below the reactor and substrates in order to increase a uniform flow and temperature over all substrates. Examiner’s Remarks The remaining references are merely cited of interest as showing the state of the art in whisker growth. Any inquiry concerning this communication or earlier communications from the examiner should be directed to ROBERT M KUNEMUND whose telephone number is (571)272-1464. The examiner can normally be reached M-F 8:00 am to 4:30 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, Kaj Olsen can be reached at 571-272-1344. 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. RMK /ROBERT M KUNEMUND/Primary Examiner, Art Unit 1714
Read full office action

Prosecution Timeline

Feb 21, 2024
Application Filed
Jan 10, 2026
Non-Final Rejection — §103 (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

1-2
Expected OA Rounds
82%
Grant Probability
96%
With Interview (+14.2%)
3y 0m
Median Time to Grant
Low
PTA Risk
Based on 1301 resolved cases by this examiner. Grant probability derived from career allow rate.

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