Prosecution Insights
Last updated: April 19, 2026
Application No. 18/030,118

LUMINAIRE SYSTEM AND METHOD FOR DETERMINING WATER INGRESS INTO A LUMINAIRE

Final Rejection §103
Filed
Apr 04, 2023
Examiner
NGUYEN, LAM S
Art Unit
2853
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Signify Holding B V
OA Round
2 (Final)
79%
Grant Probability
Favorable
3-4
OA Rounds
2y 9m
To Grant
79%
With Interview

Examiner Intelligence

Grants 79% — above average
79%
Career Allow Rate
1093 granted / 1391 resolved
+10.6% vs TC avg
Minimal +1% lift
Without
With
+0.7%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
61 currently pending
Career history
1452
Total Applications
across all art units

Statute-Specific Performance

§101
2.5%
-37.5% vs TC avg
§103
45.9%
+5.9% vs TC avg
§102
33.7%
-6.3% vs TC avg
§112
8.1%
-31.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1391 resolved cases

Office Action

§103
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 § 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) 1-3 and 14-15 is/are rejected under 35 U.S.C. 103 as being unpatentable over Owens et al. (US 2017/0184288) in view of Jost et al. (US 2020/0149989). Regarding to claims 1, 14-15: Owens discloses a luminaire system (FIG. 1, element 10) comprising: a lighting unit being adapted to provide light in the visible spectrum (FIG. 1, elements 11-15), a housing (FIG. 1, element 25) containing at least a part of the lighting unit, the lighting unit and the housing being parts of a luminaire, a sensing means positioned at or within the housing adapted to sense a functional parameter indicative of a functional characteristic of the luminaire that is influenced by water ingress into at least a part of an inner structure of the luminaire, the functional characteristic referring to a characteristic of the luminaire that is functionally related to a function of the luminaire, the sensing means being adapted to sense the functional parameter of the luminaire at different operational states of the lighting unit (paragraph [0042]: One or more sensors may monitor the conditions and transmits the monitored data at fixed time intervals and/or occurrence of a triggering event, such as turning on and/or off of the lamination device), the functional parameter is indicative of a pressure within at least a part of the housing of the luminaire and of a temperature of the luminaire (FIG. 5: One or more sensors 39. Paragraph [0036]: One or more sensors may include a pressure sensor, a temperature sensor, a humidity sensor); and a water ingress determination unit being adapted to determine water ingress into at least a part of the inner structure of the luminaire, the water ingress determination unit being further adapted to utilize a functional relation between an amount of at least one of water or water vapor present in the inner structure of the luminaire and the functional parameter (paragraph [0039]: With the humidity sensor, the moisture (water vapor) in the housing is measured for further indicating a potential of short-circuiting, presence of particulates like dust). Owens however does not teach wherein the water ingress determination unit being adapted to determine water ingress into at least a part of the inner structure of the luminaire based on the sensed functional parameter. Jost et al. discloses a method for detecting a water ingress into an interior of a housing (Abstract), wherein the housing comprises a humidity sensor and a temperature sensor (FIG. 1: Humidity sensor and temperature sensor), and wherein the water ingress is determined based on the data from the humidity sensor and the temperature sensor (Abstract). Therefore, it would have been obvious for one having ordinary skill in the art before the effective filing date of the claimed invention to modify Owens’s method to determine the water ingress based on the detected humidity and temperature to obtain a rapid detection with an ingress of very small water quantities into the housing as taught by Jost et al. (paragraph [0013]). Owens also discloses the following claims: Regarding to claim 2: wherein the water ingress determination unit is adapted to determine the water ingress into at least a part of an inner structure of the luminaire by comparing a sensed functional parameter with a predetermined baseline of this parameter (paragraph [0039]: The humidity or moisture is compared to a threshold level). Regarding to claim 3: wherein the baseline of the functional parameter is predetermined based on a parameter model that is adapted to model the functional parameter of the lighting unit with respect to at least one of an ambient environmental condition, an operational, and a water ingress state of the lighting unit (It is conventional that the ambient environment condition (such as rain, snow, ice) should have an effect on the humidity level inside the light housing. Please see Ball et al. (WO 2009/131624) “changes in the environment and vehicle operation can cause moisture to condense on the interior of the lamp enclosure” (first paragraph, first page)). Claim(s) 4 is/are rejected under 35 U.S.C. 103 as being unpatentable over Owens et al. (US 2017/0184288) in view of Jost et al. (US 2020/0149989) and further in view of Jiang (US 2020/0193796). Owens et al., as modified, discloses the claimed invention as discussed above except wherein the water ingress determination unit is adapted to determine water ingress into at least a part of an inner structure of the luminaire based on a comparison of the functional parameters determined at different operational states of the lighting unit. Jiang discloses a humidity alarm monitoring system for a stage light comprising a humidity sensor located inside the chamber of the stage light (Abstract), wherein the sensed humidity is compared to different thresholds at different operational states of the stage light (FIG. 2 shows the comparison of the detected humidity level to the second threshold and the first threshold). Therefore, it would have been obvious for one having ordinary skill in the art at the time of the filing date to modify the determination in Owens’ light fixture, as modified, to compare the detected humidity level to multiple different thresholds to provide alarm and protection of the light fixture due to excessive humidity as taught by Jiang (paragraph [0023]). Response to Arguments Applicant’s arguments with respect to the claim(s) have been considered but are moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to LAM S NGUYEN whose telephone number is (571)272-2151. 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 RODRIGUEZ, can be reached on 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 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. /LAM S NGUYEN/ Primary Examiner, Art Unit 2853
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Prosecution Timeline

Apr 04, 2023
Application Filed
Sep 02, 2025
Non-Final Rejection — §103
Jan 05, 2026
Response Filed
Mar 24, 2026
Final Rejection — §103 (current)

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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
79%
Grant Probability
79%
With Interview (+0.7%)
2y 9m
Median Time to Grant
Moderate
PTA Risk
Based on 1391 resolved cases by this examiner. Grant probability derived from career allow rate.

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