Prosecution Insights
Last updated: April 19, 2026
Application No. 18/596,304

OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS

Non-Final OA §112
Filed
Mar 05, 2024
Examiner
DUNNING, RYAN S
Art Unit
2872
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Canon Kabushiki Kaisha
OA Round
1 (Non-Final)
77%
Grant Probability
Favorable
1-2
OA Rounds
3y 0m
To Grant
99%
With Interview

Examiner Intelligence

Grants 77% — above average
77%
Career Allow Rate
322 granted / 420 resolved
+8.7% vs TC avg
Strong +22% interview lift
Without
With
+21.9%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
34 currently pending
Career history
454
Total Applications
across all art units

Statute-Specific Performance

§103
41.9%
+1.9% vs TC avg
§102
31.1%
-8.9% vs TC avg
§112
20.6%
-19.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 420 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 . 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. Claims 1-15 are 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 pre-AIA the applicant regards as the invention. Claim 1 recites the phrase: “the second lens being disposed on a side opposite to a side where the first lens is disposed as a boundary of the rotational polygon mirror with respect as viewed in the axial direction of the rotation shaft of the rotational polygon mirror”. It is unclear whether what is meant by “as a boundary of the rotational polygon mirror”. However, it is believed that this language is intended to convey that first and second lens are at opposite sides of the polygon mirror (see, e.g., FIGS. 2 and 4). Thus, for examination, this phrase will be treated as: “the second lens being disposed on a side opposite to a side where the first lens is disposed when the rotational polygon mirror is a boundary between the sides and when viewed in the axial direction of the rotation shaft of the rotational polygon mirror”. Claims 2-15 inherit the deficiencies of Claim 1. Appropriate correction is required. Allowable Subject Matter Claims 1-15, as best understood, would be allowable if rewritten to overcome the rejections based on 35 USC 112(b) explained above. The following is a statement of reasons for the indication of allowable subject matter. With respect to Claim 1, although the prior art discloses various optical scanning devices, including: PNG media_image1.png 442 530 media_image1.png Greyscale PNG media_image2.png 142 520 media_image2.png Greyscale The prior art does not appear to further disclose or suggest the above features further comprising the combined features of: PNG media_image3.png 114 514 media_image3.png Greyscale With respect to Claims 2-15, these claims each depend from Claim 1, and are therefore allowable for at least the reasons stated above. Related Art The following references are cited to show examples of scanning devices utilizing polygonal mirrors and light shielding members, but which do not otherwise disclose or suggest the claimed invention: (1) U.S. Pat. No. 5,539,447 of Akuta et al., and (2) U.S. Pat. No. 11,747,610 of Sakaue et al. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to RYAN S DUNNING whose telephone number is 571-272-4879. The examiner can normally be reached Monday thru Friday 10:30AM to 7:00PM Eastern Time Zone. 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, BUMSUK WON can be reached at 571-272-2713. 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 PAIR system, 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. /RYAN S DUNNING/Primary Examiner, Art Unit 2872
Read full office action

Prosecution Timeline

Mar 05, 2024
Application Filed
Feb 25, 2026
Non-Final Rejection — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12591104
LENS MODULE AND ELECTRONIC DEVICE
2y 5m to grant Granted Mar 31, 2026
Patent 12578547
OPTICAL LENS ASSEMBLY CONFIGURED FOR NEAR INFRARED LIGHT
2y 5m to grant Granted Mar 17, 2026
Patent 12578510
ARTICLE HAVING OPTICAL COATING WITH GREATER THICKNESS ON PLANAR PORTION RELATIVE TO CURVED OR FACETED PORTION
2y 5m to grant Granted Mar 17, 2026
Patent 12578678
HOLOGRAM ACQUISITION APPARATUS HAVING BEAM SPLITTER AND ANNULAR SPHERICAL ARRAY
2y 5m to grant Granted Mar 17, 2026
Patent 12571953
POLARIZING FILM HAVING PRESSURE-SENSITIVE ADHESIVE LAYER WITH SPECIFIED SATURATED MOISTURE CONTENT
2y 5m to grant Granted Mar 10, 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
77%
Grant Probability
99%
With Interview (+21.9%)
3y 0m
Median Time to Grant
Low
PTA Risk
Based on 420 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