Prosecution Insights
Last updated: August 15, 2026
Application No. 18/401,508

HIGH RELIABILITY HIGH POWER HIGH BRIGHTNESS BLUE LASER DIODE SYSTEMS AND METHODS OF MAKING THE SAME

Non-Final OA §112
Filed
Dec 31, 2023
Priority
Feb 02, 2019 — provisional 62/800,474 +1 more
Examiner
GOLUB-MILLER, MARCIA A
Art Unit
2828
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Nuburu, Inc.
OA Round
1 (Non-Final)
51%
Grant Probability
Moderate
1-2
OA Rounds
1y 0m
Est. Remaining
78%
With Interview

Examiner Intelligence

Grants 51% of resolved cases
51%
Career Allowance Rate
157 granted / 307 resolved
-16.9% vs TC avg
Strong +26% interview lift
Without
With
+26.5%
Interview Lift
resolved cases with interview
Typical timeline
3y 8m
Avg Prosecution
19 currently pending
Career history
331
Total Applications
across all art units

Statute-Specific Performance

§101
2.2%
-37.8% vs TC avg
§103
43.6%
+3.6% vs TC avg
§102
22.2%
-17.8% vs TC avg
§112
29.2%
-10.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 307 resolved cases

Office Action

§112
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 . DETAILED ACTION Election/Restrictions Applicant’s election without traverse of the embodiment of Fig 5 (claims 8-13, 16, 17) in the reply filed on 6/26/2026 is acknowledged. Applicant has canceled non-elected claims. 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. Claims 8-13, 16 and 17 are rejected under 35 U.S.C. 112(b) as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor, regards as the invention. 1) Claims 8-11 recite limitations "laser beam", "combined laser beam", "beam properties", and “combined beam properties”. There is insufficient antecedent basis for the limitation "beam properties" in the claims. The claims use these terms interchangeably, creating a confusion. Since there is a plurality of laser beams produced by the plurality of diode lasers and a combined laser beam produced by the optics assembly, it is not clear if the "beam properties" referring to the plurality of individual beams or to the combined beam. 2) The term “high power” in claim 8 is a relative term which renders the claim indefinite. The term “high” is not defined by the claim, the specification does not provide a standard for ascertaining the requisite degree, and one of ordinary skill in the art would not be reasonably apprised of the scope of the invention. 3) The term “high brightness” in claim 8 is a relative term which renders the claim indefinite. The term “high” is not defined by the claim, the specification does not provide a standard for ascertaining the requisite degree, and one of ordinary skill in the art would not be reasonably apprised of the scope of the invention. 4) The term “high-quality” in claim 8 is a relative term which renders the claim indefinite. The term “high” is not defined by the claim, the specification does not provide a standard for ascertaining the requisite degree, and one of ordinary skill in the art would not be reasonably apprised of the scope of the invention. 5) The term “long periods of time” in claim 8 is a relative term which renders the claim indefinite. The term “long” is not defined by the claim, the specification does not provide a standard for ascertaining the requisite degree, and one of ordinary skill in the art would not be reasonably apprised of the scope of the invention. 6) The term “substantial degradation” in claim 8 is a relative term which renders the claim indefinite. The term “substantial” is not defined by the claim, the specification does not provide a standard for ascertaining the requisite degree, and one of ordinary skill in the art would not be reasonably apprised of the scope of the invention. 7) Regarding claims 8-10, the phrases "at least about" and “less than about” render the claims indefinite because it is unclear whether the limitation(s) following the phrase are part of the claimed invention. See MPEP § 2173.05(d). 8) The term “about” in claims 8-10 is a relative term which renders the claims indefinite. The term “about” is not defined by the claim, the specification does not provide a standard for ascertaining the requisite degree, and one of ordinary skill in the art would not be reasonably apprised of the scope of the invention. 9) Claims 9 and 10 recite a limitation “the propagation surface”. There is insufficient antecedent basis for this limitation in the claims. Claim 8 already recites “a housing propagation surface” and claim 12 recites “the propagation surface of the facets”. 10) Claim 12 recites a limitation “the propagation surface of the facets.” There is insufficient antecedent basis for this limitation in the claim. Claim 8 recites limitations "a plurality of facets" and “a housing propagation surface”. Since the propagation surface is defined as a window or a fiber face, it is not clear if the plurality of laser diode facets could have a propagation surface at all. 11) Claims 16 and 17 recite limitation “the sources of … contaminates is selected from …”. This is grammatically incorrect and should be amended to recite “the source of … contaminates is selected from …”. The remainder of the claims are rejected for their dependence on claim 8. For the purpose of examination, the limitations as presented have been searched and considered. Information Disclosure Statement The applicant is reminded of the 37 CFR 1.56 Duty to disclose information material to patentability: (a) A patent by its very nature is affected with a public interest. The public interest is best served, and the most effective patent examination occurs when, at the time an application is being examined, the Office is aware of and evaluates the teachings of all information material to patentability. Each individual associated with the filing and prosecution of a patent application has a duty of candor and good faith in dealing with the Office, which includes a duty to disclose to the Office all information known to that individual to be material to patentability as defined in this section. The duty to disclose information exists with respect to each pending claim until the claim is cancelled or withdrawn from consideration, or the application becomes abandoned. Information material to the patentability of a claim that is cancelled or withdrawn from consideration need not be submitted if the information is not material to the patentability of any claim remaining under consideration in the application. There is no duty to submit information which is not material to the patentability of any existing claim. The duty to disclose all information known to be material to patentability is deemed to be satisfied if all information known to be material to patentability of any claim issued in a patent was cited by the Office or submitted to the Office in the manner prescribed by §§ 1.97(b)-(d) and 1.98. However, no patent will be granted on an application in connection with which fraud on the Office was practiced or attempted or the duty of disclosure was violated through bad faith or intentional misconduct. The Office encourages applicants to carefully examine: (1) Prior art cited in search reports of a foreign patent office in a counterpart application or of related US applications, and (2) The closest information over which individuals associated with the filing or prosecution of a patent application believe any pending claim patentably defines, to make sure that any material information contained therein is disclosed to the Office. Pertinent Art The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Applicant’s attention is drawn to the references cited on form PTO-892 which lists other references with similar features as the invention. Contact Info Any inquiry concerning this communication or earlier communications from the examiner should be directed to M. A. GOLUB-MILLER whose telephone number is (571)272-8602. The examiner can normally be reached on M-F 9-5. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, MinSun Harvey can be reached on (571) 272-1835. 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. 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. For more information about the PAIR system, see https://ppair-my.uspto.gov/pair/PrivatePair. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). /M. A. Golub-Miller/Primary Examiner, Art Unit 2828
Read full office action

Prosecution Timeline

Dec 31, 2023
Application Filed
Mar 20, 2024
Response after Non-Final Action
Jul 28, 2026
Non-Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12658665
LASER DEVICE AND METHOD OF ACHIEVING OPTICAL GAIN WITH COLLOIDAL QUANTUM FOUNTAINS
4y 3m to grant Granted Jun 16, 2026
Patent 12627117
SURFACE-EMITTING LASER WITH OPTIMIZED DBR STRUCTURE AND ENHANCED OPTICAL CONFINEMENT
4y 5m to grant Granted May 12, 2026
Patent 12625099
METHOD FOR CHARACTERIZING ENERGY LEVEL OF CORE/SHELL NANOPARTICLE
4y 0m to grant Granted May 12, 2026
Patent 12603475
DEVICES AND METHODS FOR TUNING VCSELS
4y 3m to grant Granted Apr 14, 2026
Patent 12592541
METHOD OF CONTROLLING AN OPTICAL OUTPUT POWER OF A LASER DIODE, CONTROL DEVICE AND SYSTEM
3y 8m to grant Granted Mar 31, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

1-2
Expected OA Rounds
51%
Grant Probability
78%
With Interview (+26.5%)
3y 8m (~1y 0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 307 resolved cases by this examiner. Grant probability derived from career allowance 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