Prosecution Insights
Last updated: April 19, 2026
Application No. 18/651,313

SYSTEM AND METHOD FOR JOINT COMMUNICATION AND ILLUMINATION THROUGH UNMANNED AERIAL VEHICLES

Non-Final OA §103§112
Filed
Apr 30, 2024
Examiner
LEE, JAI M
Art Unit
2634
Tech Center
2600 — Communications
Assignee
Indian Institute Of Technology Kharagpur
OA Round
1 (Non-Final)
77%
Grant Probability
Favorable
1-2
OA Rounds
2y 2m
To Grant
88%
With Interview

Examiner Intelligence

Grants 77% — above average
77%
Career Allow Rate
363 granted / 473 resolved
+14.7% vs TC avg
Moderate +12% lift
Without
With
+11.7%
Interview Lift
resolved cases with interview
Typical timeline
2y 2m
Avg Prosecution
16 currently pending
Career history
489
Total Applications
across all art units

Statute-Specific Performance

§101
4.2%
-35.8% vs TC avg
§103
49.2%
+9.2% vs TC avg
§102
12.2%
-27.8% vs TC avg
§112
25.0%
-15.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 473 resolved cases

Office Action

§103 §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 Interpretation The following is a quotation of 35 U.S.C. 112(f): (f) Element in Claim for a Combination. – An element in a claim for a combination may be expressed as a means or step for performing a specified function without the recital of structure, material, or acts in support thereof, and such claim shall be construed to cover the corresponding structure, material, or acts described in the specification and equivalents thereof. The following is a quotation of pre-AIA 35 U.S.C. 112, sixth paragraph: An element in a claim for a combination may be expressed as a means or step for performing a specified function without the recital of structure, material, or acts in support thereof, and such claim shall be construed to cover the corresponding structure, material, or acts described in the specification and equivalents thereof. The claims in this application are given their broadest reasonable interpretation using the plain meaning of the claim language in light of the specification as it would be understood by one of ordinary skill in the art. The broadest reasonable interpretation of a claim element (also commonly referred to as a claim limitation) is limited by the description in the specification when 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, is invoked. As explained in MPEP § 2181, subsection I, claim limitations that meet the following three-prong test will be interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph: (A) the claim limitation uses the term “means” or “step” or a term used as a substitute for “means” that is a generic placeholder (also called a nonce term or a non-structural term having no specific structural meaning) for performing the claimed function; (B) the term “means” or “step” or the generic placeholder is modified by functional language, typically, but not always linked by the transition word “for” (e.g., “means for”) or another linking word or phrase, such as “configured to” or “so that”; and (C) the term “means” or “step” or the generic placeholder is not modified by sufficient structure, material, or acts for performing the claimed function. Use of the word “means” (or “step”) in a claim with functional language creates a rebuttable presumption that the claim limitation is to be treated in accordance with 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. The presumption that the claim limitation is interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, is rebutted when the claim limitation recites sufficient structure, material, or acts to entirely perform the recited function. Absence of the word “means” (or “step”) in a claim creates a rebuttable presumption that the claim limitation is not to be treated in accordance with 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. The presumption that the claim limitation is not interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, is rebutted when the claim limitation recites function without reciting sufficient structure, material or acts to entirely perform the recited function. Claim limitations in this application that use the word “means” (or “step”) are being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, except as otherwise indicated in an Office action. Conversely, claim limitations in this application that do not use the word “means” (or “step”) are not being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, except as otherwise indicated in an Office action. This application includes one or more claim limitations that do not use the word “means,” but are nonetheless being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, because the claim limitation(s) uses a generic placeholder that is coupled with functional language without reciting sufficient structure to perform the recited function and the generic placeholder is not preceded by a structural modifier. Such claim limitation(s) is/are: “V-FBS workshop for storing and maintaining” and “controller means.” Because this/these claim limitation(s) is/are being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, it/they is/are being interpreted to cover the corresponding structure described in the specification as performing the claimed function, and equivalents thereof. If applicant does not intend to have this/these limitation(s) interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, applicant may: (1) amend the claim limitation(s) to avoid it/them being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph (e.g., by reciting sufficient structure to perform the claimed function); or (2) present a sufficient showing that the claim limitation(s) recite(s) sufficient structure to perform the claimed function so as to avoid it/them being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. 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. Claim limitation “V-FBS workshop (110) for storing and maintaining” and “controller means” of claim 3 invokes 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. However, the written description fails to disclose the corresponding structure, material, or acts for performing the entire claimed function and to clearly link the structure, material, or acts to the function. A review of the specification shows that the following appears to be the corresponding structure described in the specification for the 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph limitation: a building labeled 110 in Fig. 1 and a box labeled 111. However, the corresponding disclosure is inadequate because the structure or material that performs the function is absent. The corresponding structure or material is absent when there is no discussion in the specification or drawings of what accomplishes the function. This can occur when the specification merely repeats the function without any structure to perform the function or when the specification or drawings merely designate a “black box” to perform the function. Therefore, the claim is indefinite and is rejected under 35 U.S.C. 112(b) or pre-AIA 35 U.S.C. 112, second paragraph. Applicant may: (a) Amend the claim so that the claim limitation will no longer be interpreted as a limitation under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph; (b) Amend the written description of the specification such that it expressly recites what structure, material, or acts perform the entire claimed function, without introducing any new matter (35 U.S.C. 132(a)); or (c) Amend the written description of the specification such that it clearly links the structure, material, or acts disclosed therein to the function recited in the claim, without introducing any new matter (35 U.S.C. 132(a)). If applicant is of the opinion that the written description of the specification already implicitly or inherently discloses the corresponding structure, material, or acts and clearly links them to the function so that one of ordinary skill in the art would recognize what structure, material, or acts perform the claimed function, applicant should clarify the record by either: (a) Amending the written description of the specification such that it expressly recites the corresponding structure, material, or acts for performing the claimed function and clearly links or associates the structure, material, or acts to the claimed function, without introducing any new matter (35 U.S.C. 132(a)); or (b) Stating on the record what the corresponding structure, material, or acts, which are implicitly or inherently set forth in the written description of the specification, perform the claimed function. For more information, see 37 CFR 1.75(d) and MPEP §§ 608.01(o) and 2181. Claim limitation “V-FBS workshop (110) for storing and maintaining” of claim 4 invokes 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. However, the written description fails to disclose the corresponding structure, material, or acts for performing the entire claimed function and to clearly link the structure, material, or acts to the function. A review of the specification shows that the following appears to be the corresponding structure described in the specification for the 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph limitation: a building labeled 110 in Fig. 1. However, the corresponding disclosure is inadequate because the structure or material that performs the function is absent. The corresponding structure or material is absent when there is no discussion in the specification or drawings of what accomplishes the function. This can occur when the specification merely repeats the function without any structure to perform the function or when the specification or drawings merely designate a “black box” to perform the function. Therefore, the claim is indefinite and is rejected under 35 U.S.C. 112(b) or pre-AIA 35 U.S.C. 112, second paragraph. Applicant may: (a) Amend the claim so that the claim limitation will no longer be interpreted as a limitation under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph; (b) Amend the written description of the specification such that it expressly recites what structure, material, or acts perform the entire claimed function, without introducing any new matter (35 U.S.C. 132(a)); or (c) Amend the written description of the specification such that it clearly links the structure, material, or acts disclosed therein to the function recited in the claim, without introducing any new matter (35 U.S.C. 132(a)). If applicant is of the opinion that the written description of the specification already implicitly or inherently discloses the corresponding structure, material, or acts and clearly links them to the function so that one of ordinary skill in the art would recognize what structure, material, or acts perform the claimed function, applicant should clarify the record by either: (a) Amending the written description of the specification such that it expressly recites the corresponding structure, material, or acts for performing the claimed function and clearly links or associates the structure, material, or acts to the claimed function, without introducing any new matter (35 U.S.C. 132(a)); or (b) Stating on the record what the corresponding structure, material, or acts, which are implicitly or inherently set forth in the written description of the specification, perform the claimed function. For more information, see 37 CFR 1.75(d) and MPEP §§ 608.01(o) and 2181. The dependent claim 5 is rejected for being dependent on the rejected claim 4. Claim limitation “means for generating energy efficient altitude” of claim 8 invokes 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. However, the written description fails to disclose the corresponding structure, material, or acts for performing the entire claimed function and to clearly link the structure, material, or acts to the function. A review of the specification shows that the following appears to be the corresponding structure described in the specification for the 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph limitation: the box 121 of Figure 1. However, the corresponding disclosure is inadequate because the structure or material that performs the function is absent. The corresponding structure or material is absent when there is no discussion in the specification or drawings of what accomplishes the function. This can occur when the specification merely repeats the function without any structure to perform the function or when the specification or drawings merely designate a “black box” to perform the function. Therefore, the claim is indefinite and is rejected under 35 U.S.C. 112(b) or pre-AIA 35 U.S.C. 112, second paragraph. Applicant may: (a) Amend the claim so that the claim limitation will no longer be interpreted as a limitation under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph; (b) Amend the written description of the specification such that it expressly recites what structure, material, or acts perform the entire claimed function, without introducing any new matter (35 U.S.C. 132(a)); or (c) Amend the written description of the specification such that it clearly links the structure, material, or acts disclosed therein to the function recited in the claim, without introducing any new matter (35 U.S.C. 132(a)). If applicant is of the opinion that the written description of the specification already implicitly or inherently discloses the corresponding structure, material, or acts and clearly links them to the function so that one of ordinary skill in the art would recognize what structure, material, or acts perform the claimed function, applicant should clarify the record by either: (a) Amending the written description of the specification such that it expressly recites the corresponding structure, material, or acts for performing the claimed function and clearly links or associates the structure, material, or acts to the claimed function, without introducing any new matter (35 U.S.C. 132(a)); or (b) Stating on the record what the corresponding structure, material, or acts, which are implicitly or inherently set forth in the written description of the specification, perform the claimed function. For more information, see 37 CFR 1.75(d) and MPEP §§ 608.01(o) and 2181. Claims 2-6, 8, and 12-13 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. Claim 2 recites the limitation “said VLC enabled FBS.” It is unclear which VLC enabled FBS is being referred to. Claim 1 recites “visible light communication enabled flying base stations” which is a plurality of VLC enabled FBS. Is the limitation referring to a particular VLC enabled FBS among the plurality of the VLC enabled FBSs or does it refer to all of them? Claim 3 recites the limitation “said V-FBS network” and "said BBU Pool". There is insufficient antecedent basis for this limitation in the claim. Claim 4 recites the limitation "said BBU Pool" in line 3. There is insufficient antecedent basis for this limitation in the claim. Claim 4 also recites the limitation “said V-FBS.” It is unclear which VLC enabled FBS is being referred to. Claim 1 recites “visible light communication enabled flying base stations” which is a plurality of VLC enabled FBS. Is the limitation referring to a particular VLC enabled FBS among the plurality of the VLC enabled FBSs or does it refer to all of them? The dependent claim 5 is rejected for being dependent on the rejected claim 4. Claim 5 recites the limitation “the angle of irradiation,” “the vertical distance,” and "the horizontal distance". There is insufficient antecedent basis for this limitation in the claim. Claim 6 recites the limitation “the minimum.” There is insufficient antecedent basis for this limitation in the claim. Claim 8 recites the limitation “the V-FBS.” It is unclear which VLC enabled FBS is being referred to. Claim 1 recites “visible light communication enabled flying base stations” which is a plurality of VLC enabled FBS. Is the limitation referring to a particular VLC enabled FBS among the plurality of the VLC enabled FBSs or does it refer to all of them? Claim 12 recites the limitations “the V-FBS capacity limit,” “the deployed network,” “the connection,” and “the baseband unit.” There are insufficient antecedent basis for these limitations in the claim. Claim 13 recites the limitations “the inputs,” “the deployed zone,” “the V-FBS workshop,” “the BBU pool,” “the total data rate,” “the UE,” “the threshold channel gain,” and “the power of illumination.” There are insufficient antecedent basis for these limitations in the claim. 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. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. Claim(s) 1-2 and 10-11 is/are rejected under 35 U.S.C. 103 as being unpatentable over Rojas-Cessa et al. (US20240154698A1). Regarding claim 1, Rojas-Cessa et al. discloses A system for telecommunication involving visible light communication (Fig. 1) comprising: joint communication and illumination (Fig. 1; Para. 126; a non-direct line-of-sight free-space optical communications (NLoS-FSOC) enables to transmit and receive wireless signals at the frequency of visible light for communications using a diffuse reflector) based unmanned aerial vehicles based communication network (Fig. 1; Para. 37; the network includes one or more stations 5, a drone 4, and optical base station (OBS) 1 having a diffuse reflector 2. In this embodiment, the network could be divided into two parts: a) a front-haul; the communications between a station and a drone 4, marked as solid lines in the figure, the drone 4 having a diffuse deflector 3, and b) a back-haul; the communications between the drone and the OBS, marked as dashed lines) including visible light communication enabled flying base stations (V-FBSs) (Fig. 1; Fig. 12; Para. 126; a non-direct line-of-sight free-space optical communications (NLoS-FSOC) enables to transmit and receive wireless signals at the frequency of visible light for communications using a diffuse reflector. The drones are equipped with diffuse reflectors). Regarding the limitation "favouring connectivity flexibility and dynamically supplemented communication network,” it has been held that a recitation with respect to the manner in which a claim apparatus is intended to be employed does not differentiate the claimed apparatus from a prior art apparatus satisfying the claimed structural limitations (Ex Parte Masham, 2 USPQ2d 1647 (1987)). Furthermore, this limitation is merely the result of having the structures in the claim limitation. Consequently, claim language does not limit a claim to a particular structure. Regarding claim 2, the present system discloses The system as claimed in claim 1, as described and applied above, comprising said VLC enabled FBS providing supplementary communication system alongside prevalent RF communications (Fig. 1; Abstract; The present disclosure is used autonomously or in combination with other systems such as RF schemes for a more robust solution to RF schemes alone). Regarding claim 10, the present system discloses a system that necessarily perform this method claim in light of the rejection described and applied in Claim 1. Regarding claim 11, the present system discloses The method as claimed in claim 10 wherein said VLC based flying base stations (V-FBSs) disposition is carried out free of any interference with the radio frequencies and energy efficient 3-D deployment (Fig. 1; the drones are deployed as shown. No interference of radio frequencies and energy efficient 3-D deployment is described in this invention). Allowable Subject Matter Claims 7 and 9 objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to JAI M LEE whose telephone number is (571)272-5870. The examiner can normally be reached M-F 9:5:30 PM. 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, Kenneth Vanderpuye can be reached at 571-272-3078. 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. JAI M. LEE Examiner Art Unit 2634 /JAI M LEE/Examiner, Art Unit 2634
Read full office action

Prosecution Timeline

Apr 30, 2024
Application Filed
Feb 27, 2026
Non-Final Rejection — §103, §112 (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
77%
Grant Probability
88%
With Interview (+11.7%)
2y 2m
Median Time to Grant
Low
PTA Risk
Based on 473 resolved cases by this examiner. Grant probability derived from career allow rate.

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