Prosecution Insights
Last updated: April 19, 2026
Application No. 18/032,589

LIGHTING SYSTEM

Non-Final OA §112
Filed
Apr 19, 2023
Examiner
CLEVELAND, TIMOTHY C
Art Unit
1774
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Signify Holding B V
OA Round
1 (Non-Final)
60%
Grant Probability
Moderate
1-2
OA Rounds
3y 0m
To Grant
77%
With Interview

Examiner Intelligence

Grants 60% of resolved cases
60%
Career Allow Rate
544 granted / 907 resolved
-5.0% vs TC avg
Strong +17% interview lift
Without
With
+17.0%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
47 currently pending
Career history
954
Total Applications
across all art units

Statute-Specific Performance

§101
0.8%
-39.2% vs TC avg
§103
41.5%
+1.5% vs TC avg
§102
21.1%
-18.9% vs TC avg
§112
30.2%
-9.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 907 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 applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. In regard to claim 1, the limitation of “wherein the air ionizer is configured to vary its generation of ionized air […] in response to the control unit varying at least one of the color and color temperature of the combined light” is indefinite because the limitation can have many different interpretations. The limitation does not have any limiting factors or direction as to how the generation of ionized air is varied in response to either of the varying of the color or color temperature. Is the color or color temperature directly related or inversely related to the generation of ionized air? And how much is the air ionizer varied from a change in color or color temperature? As the claim does not provide direction with regard to at least these questions, the claim can be interpreted in many different ways and is thus indefinite. Regarding claims 2 and 4, the phrase "such as" renders the claim indefinite because it is unclear whether the limitations following the phrase are part of the claimed invention. See MPEP § 2173.05(d). In regard to claim 15, the limitation of “varying the air ionizer’s generation of ionized air […] in response to the control unit varying at least one of the color and color temperature of the combined light” is indefinite because the limitation can have many different interpretations. The limitation does not have any limiting factors or direction as to how the generation of ionized air is varied in response to either of the varying of the color or color temperature. Is the color or color temperature directly related or inversely related to the generation of ionized air? And how much is the air ionizer varied from a change in color or color temperature? As the claim does not provide direction with regard to at least these questions, the claim can be interpreted in many different ways and is thus indefinite. Allowable Subject Matter Claims 1-15 would be allowable if rewritten or amended to overcome the rejection(s) under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), 2nd paragraph, set forth in this Office action. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to TIMOTHY C CLEVELAND whose telephone number is (571)270-5041. The examiner can normally be reached M-F 9:00-5:30. 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, Claire Wang can be reached at (571) 270-1051. 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. /TIMOTHY C CLEVELAND/Primary Examiner, Art Unit 1774
Read full office action

Prosecution Timeline

Apr 19, 2023
Application Filed
Aug 19, 2025
Non-Final Rejection — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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2y 5m to grant Granted Apr 07, 2026
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2y 5m 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

1-2
Expected OA Rounds
60%
Grant Probability
77%
With Interview (+17.0%)
3y 0m
Median Time to Grant
Low
PTA Risk
Based on 907 resolved cases by this examiner. Grant probability derived from career allow rate.

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