Prosecution Insights
Last updated: April 19, 2026
Application No. 18/562,769

ULTRAVIOLET LIGHT IRRADIATION SYSTEM AND ULTRAVIOLET LIGHT IRRADIATION METHOD

Non-Final OA §102
Filed
Nov 20, 2023
Examiner
MCCORMACK, JASON L
Art Unit
2881
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Nippon Telegraph and Telephone Corporation
OA Round
1 (Non-Final)
84%
Grant Probability
Favorable
1-2
OA Rounds
2y 3m
To Grant
92%
With Interview

Examiner Intelligence

Grants 84% — above average
84%
Career Allow Rate
856 granted / 1016 resolved
+16.3% vs TC avg
Moderate +8% lift
Without
With
+8.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 3m
Avg Prosecution
43 currently pending
Career history
1059
Total Applications
across all art units

Statute-Specific Performance

§101
1.1%
-38.9% vs TC avg
§103
48.1%
+8.1% vs TC avg
§102
24.8%
-15.2% vs TC avg
§112
21.5%
-18.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1016 resolved cases

Office Action

§102
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 § 102 The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claim(s) 1, 2, 3, 4, 5, and 6 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Liao et al. U.S. PGPUB No. 2016/0271280. Regarding claim 1, Liao discloses an ultraviolet light irradiation system, comprising: an ultraviolet light source unit that generates ultraviolet light (“UV light is used for disinfection of air or surfaces” [Abstract]); N (N is a natural number) irradiation units that irradiate a desired site with the ultraviolet light (“the different UV LEDs 12 are multiplexed so that the different wavelengths are emitted at different times” [0085]); an optical switch that switches the ultraviolet light to each of paths to the irradiation units (“Although all the UV LEDS 12 may be energized at once, there is a benefit in sequentially energizing the UV LEDs 12, using the multiplexer 74” [0080]); and a switching control unit that controls a switching operation of the optical switch so as to give an opportunity to be supplied with an integrated light amount per unit time equal for each of the paths on a basis of a transmission loss of the ultraviolet light for each of the paths and an irradiation area where the irradiation unit irradiates the ultraviolet light (“the different UV LEDs 12 are multiplexed so that the different wavelengths are emitted at different times. If required, certain wavelengths may be emitted for longer times than others. The photodetector 72 detects the optical power received for each wavelength. The processor 76 associates the output of the photodetector 72 with the wavelength, which also correlates to the targeted microorganism/compound. In step 88, the processor 76 correlates the attenuation at each wavelength to the amount of absorption or scattering by the targeted microorganism/compound, which can be used to determine the quantity of the targeted microorganisms/compounds in the sample. The processor 76 may also correlates the fluorescence at each wavelength to the targeted microorganism/compound” [0085-0086]). Regarding claim 2, Liao discloses a sensor that detects presence of an avoiding object at which the ultraviolet light is to be avoided at the desired site, wherein when the sensor detects presence of the avoiding object at the desired site corresponding to one of the paths at the opportunity of the one path, the switching control unit does not supply the ultraviolet light to the one path at the opportunity (“Since UV light may be dangerous with prolonged exposure, the UV LEDs 228 are only energized when there is no person in the room. This may be detected by a motion or heat sensor 230” [0125]). Regarding claim 3, Liao discloses that the switching control unit separately gives the opportunity to the one path after the avoiding object becomes absent (“Since UV light may be dangerous with prolonged exposure, the UV LEDs 228 are only energized when there is no person in the room. This may be detected by a motion or heat sensor 230” [0125]). Regarding claim 4, Liao discloses that the switching control unit gives the opportunity for the one path to another of the paths (“Since UV light may be dangerous with prolonged exposure, the UV LEDs 228 are only energized when there is no person in the room. This may be detected by a motion or heat sensor 230” [0125]). Regarding claim 5, Liao discloses that the switching control unit supplies the ultraviolet light only at the opportunity after the avoiding object becomes absent (“Since UV light may be dangerous with prolonged exposure, the UV LEDs 228 are only energized when there is no person in the room. This may be detected by a motion or heat sensor 230” [0125]). Regarding claim 6, Liao discloses an ultraviolet light irradiation method for irradiating a desired site with ultraviolet light generated by an ultraviolet light source unit (“UV light is used for disinfection of air or surfaces” [Abstract]) from N (N is a natural number) irradiation units (“the different UV LEDs 12 are multiplexed so that the different wavelengths are emitted at different times” [0085]), the method comprising giving, when the ultraviolet light is switched by an optical switch to each of paths to the irradiation units, an opportunity to be supplied with an integrated light amount per unit time equal for each of the paths on a basis of a transmission loss of the ultraviolet light for each of the paths and an irradiation area where the irradiation unit irradiates the ultraviolet light (“the different UV LEDs 12 are multiplexed so that the different wavelengths are emitted at different times. If required, certain wavelengths may be emitted for longer times than others. The photodetector 72 detects the optical power received for each wavelength. The processor 76 associates the output of the photodetector 72 with the wavelength, which also correlates to the targeted microorganism/compound. In step 88, the processor 76 correlates the attenuation at each wavelength to the amount of absorption or scattering by the targeted microorganism/compound, which can be used to determine the quantity of the targeted microorganisms/compounds in the sample. The processor 76 may also correlates the fluorescence at each wavelength to the targeted microorganism/compound” [0085-0086]). Claim(s) 1 and 6 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Kobayashi et al. U.S. PGPUB No. 2011/0150707. Regarding claim 1, Kobayashi discloses an ultraviolet light irradiation system, comprising: an ultraviolet light source unit that generates ultraviolet light (“an ultraviolet irradiation system that sterilizes, disinfects, and inactivates raw water such as city water or underground water” [Abstract]); N (N is a natural number) irradiation units that irradiate a desired site with the ultraviolet light (“four ultraviolet lamps 8a to 8d” [0024]); an optical switch that switches the ultraviolet light to each of paths to the irradiation units (“a control device, which controls turnon and turnoff of the ultraviolet lamps 8a to 8d, is electrically connected to the ultraviolet lamps 8a to 8d” [0024]); and a switching control unit that controls a switching operation of the optical switch so as to give an opportunity to be supplied with an integrated light amount per unit time equal for each of the paths on a basis of a transmission loss of the ultraviolet light for each of the paths and an irradiation area where the irradiation unit irradiates the ultraviolet light (“The ultraviolet sensors 3 are disposed to measure ultraviolet irradiation amounts from the ultraviolet lamps 8a to 8d through the monitor windows 2. The counter is disposed to measure irradiation time of the ultraviolet lamps 8a to 8d and electrically connected to the ultraviolet lamps 8a to 8d” [0024]). Regarding claim 6, Kobayashi discloses An ultraviolet light irradiation method for irradiating a desired site with ultraviolet light generated by an ultraviolet light source unit (“an ultraviolet irradiation system that sterilizes, disinfects, and inactivates raw water such as city water or underground water” [Abstract]) from N (N is a natural number) irradiation units (“four ultraviolet lamps 8a to 8d” [0024]), the method comprising giving, when the ultraviolet light is switched by an optical switch to each of paths to the irradiation units, an opportunity to be supplied with an integrated light amount per unit time equal for each of the paths on a basis of a transmission loss of the ultraviolet light for each of the paths and an irradiation area where the irradiation unit irradiates the ultraviolet light (“The ultraviolet sensors 3 are disposed to measure ultraviolet irradiation amounts from the ultraviolet lamps 8a to 8d through the monitor windows 2. The counter is disposed to measure irradiation time of the ultraviolet lamps 8a to 8d and electrically connected to the ultraviolet lamps 8a to 8d… a control device, which controls turnon and turnoff of the ultraviolet lamps 8a to 8d, is electrically connected to the ultraviolet lamps 8a to 8d” [0024]). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to JASON L MCCORMACK whose telephone number is (571)270-1489. The examiner can normally be reached M-Th 7:00AM-5:00PM EST. 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, Robert Kim can be reached at 571-272-2293. 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. /JASON L MCCORMACK/Examiner, Art Unit 2881
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Prosecution Timeline

Nov 20, 2023
Application Filed
Jan 15, 2026
Non-Final Rejection — §102 (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

1-2
Expected OA Rounds
84%
Grant Probability
92%
With Interview (+8.2%)
2y 3m
Median Time to Grant
Low
PTA Risk
Based on 1016 resolved cases by this examiner. Grant probability derived from career allow rate.

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