Prosecution Insights
Last updated: April 19, 2026
Application No. 18/013,954

EXERGY-BASED LIFE CYCLE ASSESSMENT OF BUILDINGS

Final Rejection §101
Filed
Dec 30, 2022
Examiner
YESILDAG, MEHMET
Art Unit
3624
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.
OA Round
4 (Final)
34%
Grant Probability
At Risk
5-6
OA Rounds
3y 9m
To Grant
61%
With Interview

Examiner Intelligence

Grants only 34% of cases
34%
Career Allow Rate
99 granted / 294 resolved
-18.3% vs TC avg
Strong +27% interview lift
Without
With
+26.9%
Interview Lift
resolved cases with interview
Typical timeline
3y 9m
Avg Prosecution
26 currently pending
Career history
320
Total Applications
across all art units

Statute-Specific Performance

§101
40.6%
+0.6% vs TC avg
§103
30.0%
-10.0% vs TC avg
§102
9.1%
-30.9% vs TC avg
§112
16.1%
-23.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 294 resolved cases

Office Action

§101
DETAILED ACTION Status of the Application The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . This communication is a final action in response to the correspondences filed on 1/27/2026. Claims 1-19 are currently pending and have been considered below. Claim Rejections - 35 USC § 101 35 U.S.C. 101 reads as follows: Whoever invents or discovers any new and useful process, machine, manufacture, or composition of matter, or any new and useful improvement thereof, may obtain a patent therefor, subject to the conditions and requirements of this title. Claims 1-19 are rejected under 35 U.S.C. 101 because the claimed invention is directed to non-statutory subject matter. Claims 1-19 are determined to be directed to an abstract idea. The claims 1-19 are directed to a judicial exception (i.e., law of nature, natural phenomenon, or abstract idea), without a practical application and without providing significantly more. Regarding Step 1 of the subject matter eligibility test per MPEP 2106.03, Claims 1-10 are directed to a method (i.e., process), Claims 11-19 are directed to a system (i.e., apparatus); accordingly, all claims are directed to one of the four statutory categories of invention. Regarding Step 2A-Prong 1 of the subject matter eligibility test per MPEP 2106.04, Claim 1 is directed specifically to the abstract idea of evaluating/managing life-cycle assessment of buildings by obtaining building parameters of a building, the building parameters comprising material mass values of the building; determining exergy-based life cycle assessment (Exe-LCA) values of the building based at least in part upon the building parameters, the Exe-LCA values comprising life cycle resource depletion, life cycle exergy loss of emissions and total Exe-LCA of the building; modifying a design of the building based upon the Exe-LCA values, the modification producing modified building parameters of the building; and implementing the modified building design thereby providing a reduced whole building LCA; which include mental processes (i.e., evaluating and analyzing building parameters for a judgement and opinion for Life-cycle assessment of a building) and certain methods of organizing human activities based on fundamental economic practice, and managing personal behavior and interactions between people (managing building design planning and following rules and instructions for modifying a building design for reduced LCA). Claim 11 is directed specifically to the abstract idea of evaluating/managing life-cycle assessment of buildings by determine exergy-based life cycle assessment (Exe-LCA) values of a building based at least in part upon building parameters of the building, the building parameters comprising material mass values of the building, the Exe-LCA values comprising life cycle resource depletion, life cycle exergy loss of emissions and total Exe-LCA of the building; and provide at least one modification of a design of the building based upon the Exe-LCA values, the at least one modification producing modified building parameters of the building; and generate a modified building design based upon the at least one modification, the modified building design providing a reduced whole building LCA; which include mental processes (i.e., evaluating and analyzing building parameters for a judgement and opinion for Life-cycle assessment of a building) and certain methods of organizing human activities based on fundamental economic practice, and managing personal behavior and interactions between people (managing building design planning and following rules and instructions for modifying a building design for reduced LCA). Claims 2-10 and 12-19 are directed to performing the abstract idea of claim 1 or 11 with further details provided for the mental processes and certain methods of organizing human activity for similar reasons as provided above for claim 1 or 11. After considering all claim elements, both individually and in combination and in ordered combination, it has been determined that the claims do not amount to significantly more than the abstract idea itself. Regarding Step 2A-Prong 2 of the subject matter eligibility test per MPEP 2106.04(d) and 2106.05, while the claims 1-19 recite additional elements which are hardware or software elements, such as at least one computing device comprising a processor and memory; and an ExeLCA analysis program, where execution of the ExeLCA analysis program by the at least one computing device causes the at least one computing device to, these limitations are not enough to qualify as “practical application” being recited in the claims along with the abstract idea since these limitations are merely invoked as a tool to perform instructions of the abstract idea, and mere instructions to apply/implement/automate an abstract idea in a particular technological environment and merely limiting the use of an abstract idea to a particular technological environment do not provide practical application for an abstract idea (MPEP 2106.05 (f) & (h)). The claims do not amount to "practical application" for the abstract idea because they neither (1) recite any improvements to another technology or technical field; (2) recite any improvements to the functioning of the computer itself; (3) apply the judicial exception with, or by use of, a particular machine; (4) effect a transformation or reduction of a particular article to a different state or thing; (5) provide other meaningful limitations beyond generally linking the use of the judicial exception to a particular technological environment. Further, “where implementing the modified building design comprises constructing or modifying the building based upon the modified building design” merely is insignificant extrasolution activity – insignificant application (See MPEP 2106.05(g)). Regarding Step 2B of the subject matter eligibility test per MPEP 2106.05, while the claims 1-19 recite additional elements which are hardware or software elements, such as at least one computing device comprising a processor and memory; and an ExeLCA analysis program, where execution of the ExeLCA analysis program by the at least one computing device causes the at least one computing device to, these limitations are not enough to qualify as “significantly more” being recited in the claims along with the abstract idea since these limitations are merely invoked as a tool to perform instructions of the abstract idea, and mere instructions to apply/implement/automate an abstract idea in a particular technological environment and merely limiting the use of an abstract idea to a particular technological environment do not provide significantly more to an abstract idea (MPEP 2106.05(f) & (h)). The claims do not amount to "significantly more" than the abstract idea because they neither (1) recite any improvements to another technology or technical field; (2) recite any improvements to the functioning of the computer itself; (3) apply the judicial exception with, or by use of, a particular machine; (4) effect a transformation or reduction of a particular article to a different state or thing; (5) add a specific limitation other than what is well-understood, routine and conventional in the field; (6) add unconventional steps that confine the claim to a particular useful application; nor (7) provide other meaningful limitations beyond generally linking the use of the judicial exception to a particular technological environment. Further, “where implementing the modified building design comprises constructing or modifying the building based upon the modified building design” merely is insignificant extrasolution activity - insignificant application and well-understood routine and conventional – converting an architectural plan into a building via construction (See MPEP 2106.05(d)&(g)). Therefore, since there are no limitations in the claims 1-19 that transform the exception into a patent eligible application such that the claims amount to significantly more than the exception itself, and looking at the limitations as an ordered combination adds nothing that is not already present when looking at the elements taken individually, the claims are rejected under 35 USC § 101 as being directed to non-statutory subject matter. Response to arguments Applicant’s arguments filed on /27/2026 have been fully considered and would not overcome all of the rejections in the most recent Office action. Details are provided below. Rejections under 35 U.S.C. 101: Applicant’s arguments geared towards newly added/amended limitations which are found to be insignificant extrasolution activity and well-understood routine and conventional. Please refer to the rejection section above for further clarification. Conclusion Closest prior art to the invention includes Lee et al. (Pub. No.: KR 100,934,979), Otsuka et al. (Pub. No.: JP 2004/265,178 A), Tae et al. (U.S Patent No. 11,531,793) and Rosen (M. A. Rosen, "Exergy Concept and its Application," 2007 IEEE EPEC). None of the prior art alone or in combination teaches the claimed invention wherein the novelty is in combination of all the limitations. THIS ACTION IS MADE FINAL. 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 MEHMET YESILDAG whose telephone number is (571)272-3257. The examiner can normally be reached M-F 8:30 am - 5:00 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, Jerry O'Connor can be reached on (571) 272-6787. 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. /MEHMET YESILDAG/Primary Examiner, Art Unit 3624
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Prosecution Timeline

Dec 30, 2022
Application Filed
Feb 06, 2025
Non-Final Rejection — §101
May 14, 2025
Response Filed
Jun 26, 2025
Final Rejection — §101
Sep 02, 2025
Response after Non-Final Action
Sep 29, 2025
Request for Continued Examination
Oct 05, 2025
Response after Non-Final Action
Oct 23, 2025
Non-Final Rejection — §101
Jan 27, 2026
Response Filed
Feb 18, 2026
Final Rejection — §101 (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

5-6
Expected OA Rounds
34%
Grant Probability
61%
With Interview (+26.9%)
3y 9m
Median Time to Grant
High
PTA Risk
Based on 294 resolved cases by this examiner. Grant probability derived from career allow rate.

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