Prosecution Insights
Last updated: April 19, 2026
Application No. 18/321,331

DEVELOPING DEVICE AND IMAGE FORMING APPARATUS

Non-Final OA §103
Filed
May 22, 2023
Examiner
TRAN, HOAN H
Art Unit
2852
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Fujifilm Business Innovation Corp.
OA Round
1 (Non-Final)
96%
Grant Probability
Favorable
1-2
OA Rounds
1y 8m
To Grant
99%
With Interview

Examiner Intelligence

Grants 96% — above average
96%
Career Allow Rate
524 granted / 546 resolved
+28.0% vs TC avg
Minimal +4% lift
Without
With
+4.2%
Interview Lift
resolved cases with interview
Fast prosecutor
1y 8m
Avg Prosecution
7 currently pending
Career history
553
Total Applications
across all art units

Statute-Specific Performance

§101
3.9%
-36.1% vs TC avg
§103
21.1%
-18.9% vs TC avg
§102
43.2%
+3.2% vs TC avg
§112
12.2%
-27.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 546 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 . Priority Receipt is acknowledged of certified copies of papers required by 37 CFR 1.55. Information Disclosure Statement The information disclosure statement (IDS) submitted on 05/22/2023 has been considered. Claim Rejections - 35 USC § 103 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. 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) 1-3, 9 and 10 are rejected under 35 U.S.C. 103 as being unpatentable over Hayashi [9,280,095] in view of Handa et al. [9,268,261] Hayashi discloses an image forming apparatus [Fig. 1] comprising an image carrier [11], a developing device [40], a transfer unit [25], and a fixing unit [30]; wherein the developing device including a developing roller [42] that has a circumferential surface [42s] on which a developer layer is formed at a portion facing the image carrier [Col. 8, lines 10-17], and a seal [46] including a first seal portion [Fig. 7] that covers an outer side, in a radial direction, of an axial end portion of the developing roller where the developer is not formed at the portion facing the image carrier [Col. 10, lines 5-15 and 48-60]. However, Hayashi does not disclose the seal including a second seal portion that extends inward in an axial direction from the first seal portion, and that covers an outer side, in the axial direction, of an axial end portion of the developer layer. Handa et al. disclose an image forming apparatus [Fig. 1] comprising a developing device [Abstract] including a developing roller [110], a seal [140] to perform sealing the axial end portion of the developing roller [Col 5, lines 39-52], and an upper seal [150], as a second seal portion, that extends inward in an axial direction from the first seal portion, and that covers an outer side, in the axial direction, of an axial end portion of the developer layer [Figs. 4 & 5; Col. 5, line 53-60]. It would have been obvious to one of ordinary skill in the art at the time of the invention was made to have the developing device disclosed by Hayashi having an upper seal which acts as the second seal portion as taught by Handa et al. for the purpose of preventing leakage of the developer between the free end portion of the doctor blade and the axial end portions of the developing roller. Allowable Subject Matter Claims 4-8 and 11-16 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. Contact Information Any inquiry concerning this communication or earlier communications from the examiner should be directed to HOAN H TRAN whose telephone number is (571)272-2141. The examiner can normally be reached on M-F 9AM-5:30PM. 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, Walter Lindsay can be reached on 571-272-1674. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIRsystem, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /HOAN H TRAN/Primary Examiner, Art Unit 2852 12271/25
Read full office action

Prosecution Timeline

May 22, 2023
Application Filed
Oct 03, 2023
Response after Non-Final Action
Dec 27, 2025
Non-Final Rejection — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12601988
IMAGE FORMING APPARATUS
2y 5m to grant Granted Apr 14, 2026
Patent 12601990
DEVELOPING CARTRIDGE
2y 5m to grant Granted Apr 14, 2026
Patent 12596316
DEVELOPING CARTRIDGE
2y 5m to grant Granted Apr 07, 2026
Patent 12591201
ADAPTER, CARTRIDGE, AND IMAGE FORMING APPARATUS
2y 5m to grant Granted Mar 31, 2026
Patent 12591187
IMAGE FORMING APPARATUS
2y 5m to grant Granted Mar 31, 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

1-2
Expected OA Rounds
96%
Grant Probability
99%
With Interview (+4.2%)
1y 8m
Median Time to Grant
Low
PTA Risk
Based on 546 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