Prosecution Insights
Last updated: May 29, 2026
Application No. 18/396,846

INK DROPLET VOLUME MEASUREMENT APPARATUS, INKJET PRINTING APPARATUS INCLUDING THE SAME, AND INK DROPLET VOLUME MEASUREMENT METHOD

Non-Final OA §103
Filed
Dec 27, 2023
Priority
May 02, 2023 — RE 10-2023-0057038
Examiner
VALENCIA, ALEJANDRO
Art Unit
2853
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Samsung Display Co., Ltd.
OA Round
3 (Non-Final)
43%
Grant Probability
Moderate
3-4
OA Rounds
7m
Est. Remaining
48%
With Interview

Examiner Intelligence

Grants 43% of resolved cases
43%
Career Allowance Rate
578 granted / 1350 resolved
-25.2% vs TC avg
Moderate +6% lift
Without
With
+5.7%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
93 currently pending
Career history
1495
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
80.4%
+40.4% vs TC avg
§102
17.7%
-22.3% vs TC avg
§112
0.3%
-39.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1350 resolved cases

Office Action

§103
DETAILED ACTION Allowable Subject Matter Claims 2-6, 10-14 and 17-20 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. Claim Objections Claim 1 is objected to because of the following informalities: “the contour of each liquid ink droplet” and “the shadow of each liquid ink droplet” lack antecedent basis. Appropriate correction is required. Claim Rejections - 35 USC § 103 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. Claim(s) 1, 7-9, 15 and 16 are rejected under 35 U.S.C. 103 as being unpatentable over Kerstens (5,774,224) in view of Hayashi (8,351,709) and Harjee et al. (2015/0099059). Regarding claims 1, 9, 15 and 16, Kerstens teaches a ink droplet volume measurement apparatus, inkjet printing apparatus and ink droplet volume determining method comprising: an oblique illumination device (fig. 1, item 22) configured to emit light (fig. 1, item 22) at a first angle (fig. 1, angle 34) to round objects deposited onto a substrate (fig. 1, item 16); an imaging device (fig. 1, item 28), positioned above the round objects deposited onto the substrate (see fig. 1, note that device 28 is in a higher place than round object 18. Note that Merriam-Webster’s online dictionary defines “above” as “in…a higher place than”), configured to acquire an image comprising both the contour of each round object and the shadow of each round object generated by the oblique illumination device (see fig. 1 cols. 5-6, lines 65-14); and a calculation device (fig. 1, item 84) configured to calculate a volume of the round objects deposited onto the substrate based on the round objects in the planar image and shadow in the planar image obtained by the imaging device (cols. 5-6, lines 51-14). Kerstens does not teach acquiring a plan view. Hayashi teaches an oblique illumination device with a camera directly over top of the item to be illuminated so as to acquire a plan view (Hayashi, see fig. 4, Note camera 22 pointing straight downward). It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to reposition the camera disclosed by Kerstens in the manner disclosed by Hayashi because doing so would amount to the simple substitution of one known camera angle for another to obtain predictable results. Kerstens in view of Hayashi does not teach wherein the round objects are liquid ink droplets, an inkjet head with nozzles for ejecting the liquid ink droplets onto the substrate or a controller to control the ink jet head to eject the liquid ink droplets. Harjee teaches this (Harjee, [0006]). It would have been obvious to one of ordinary skill in the art at the time of invention to use the volume determination technique disclosed by Kerstens to determine ink droplet volumes of Harjee because doing so would allow for a more thorough volume measurement technique, thereby allowing for more precise calibration of droplet volumes in Harjee’s printer. Regarding claim 7, Kerstens in view of Hayashi and Harjee teaches ink droplet volume measurement apparatus of claim 1, wherein 10 the first angle is greater than about 0 degrees and smaller than about 90 degrees (Kerstens, see fig. 1). Regarding claim 8, Kerstens in view of Hayashi and Harjee teaches ink droplet volume measurement apparatus of claim 1, wherein the imaging device includes at least one of an area camera that captures an image of a predetermined unit area or a line scan camera that captures an image in a predetermined line unit (Kerstens, see fig. 1). Response to Arguments Applicant’s arguments with respect to claim(s) 1 have been considered but are moot in light of the new ground(s) of rejection. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ALEJANDRO VALENCIA whose telephone number is (571)270-5473. The examiner can normally be reached M-F. 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, DOUGLAS X. RODRIGUEZ can be reached at 571-431-0716. 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. /ALEJANDRO VALENCIA/Primary Examiner, Art Unit 2853
Read full office action

Prosecution Timeline

Dec 27, 2023
Application Filed
Jul 17, 2025
Non-Final Rejection mailed — §103
Oct 04, 2025
Response Filed
Oct 16, 2025
Final Rejection mailed — §103
Dec 15, 2025
Response after Non-Final Action
Jan 16, 2026
Request for Continued Examination
Jan 26, 2026
Response after Non-Final Action
May 07, 2026
Non-Final Rejection mailed — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12623464
INKJET RECORDING DEVICE
1y 7m to grant Granted May 12, 2026
Patent 12617218
Ink Jet Recording Apparatus
3y 1m to grant Granted May 05, 2026
Patent 12605944
PRINTER, CONTROL METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM STORING COMPUTER-READABLE INSTRUCTIONS
4y 4m to grant Granted Apr 21, 2026
Patent 12600127
INKJET ASSEMBLY, INKJET PRINTING APPARATUS AND INKJET PRINTING METHOD FOR USE IN PREPARATION OF DISPLAY COMPONENT
2y 7m to grant Granted Apr 14, 2026
Patent 12583238
PAPER SUPPLY CONTROL DEVICE
1y 10m to grant Granted Mar 24, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
43%
Grant Probability
48%
With Interview (+5.7%)
3y 0m (~7m remaining)
Median Time to Grant
High
PTA Risk
Based on 1350 resolved cases by this examiner. Grant probability derived from career allowance rate.

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