Prosecution Insights
Last updated: August 17, 2026
Application No. 17/447,212

METHOD AND DEVICE FOR MANAGING THE ENERGY SUPPLIED BY A HYBRID POWER PLANT FOR A ROTORCRAFT

Non-Final OA §112
Filed
Sep 09, 2021
Priority
Sep 14, 2020 — FR 2009286
Examiner
KRAMER, DEVON C
Art Unit
3741
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Airbus Helicopters
OA Round
6 (Non-Final)
14%
Grant Probability
At Risk
6-7
OA Rounds
0m
Est. Remaining
30%
With Interview

Examiner Intelligence

Grants only 14% of cases
14%
Career Allowance Rate
20 granted / 147 resolved
-56.4% vs TC avg
Strong +16% interview lift
Without
With
+16.3%
Interview Lift
resolved cases with interview
Typical timeline
3y 9m
Avg Prosecution
12 currently pending
Career history
153
Total Applications
across all art units

Statute-Specific Performance

§101
1.7%
-38.3% vs TC avg
§103
47.2%
+7.2% vs TC avg
§102
23.5%
-16.5% vs TC avg
§112
25.4%
-14.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 147 resolved cases

Office Action

§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 . Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on May 8, 2026 has been entered. Claim Rejections - 35 USC § 112 The following is a quotation of the first paragraph of 35 U.S.C. 112(a): (a) IN GENERAL.—The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention. The following is a quotation of the first paragraph of pre-AIA 35 U.S.C. 112: The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor of carrying out his invention. Claims 1-9, 11-18, 20-21 are rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the written description requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to reasonably convey to one skilled in the relevant art that the inventor or a joint inventor, or for applications subject to pre-AIA 35 U.S.C. 112, the inventor(s), at the time the application was filed, had possession of the claimed invention. Claim 1 recites, “controlling the at least one heat engine and the at least one electric motor ….. so as to satisfy a mechanical power requirement associated with propelling the rotorcraft”. This is considered new matter. The application as filed does state that the mechanical power requirement itself is associated with propelling the rotorcraft. The specification states that a determination of the mechanical power requirement may be determined as a function of its forward speed, but how that speed relates or impacts the function is not clear or explained. Claim 1 also recites, “while limiting electrical power contribution to not exceed an electrical power usage limit based on that at least one first characteristic”. This is not present in the specification and is not gleaned from the drawings. The specification fails to mention a usage limit for the electrical supply. This limitation is also considered new matter. Please note that a similar limitation is present in claim 17. . Applicant has not provided enough details in their specification related to algorithms or calculations to provide a showing of possession for the specific algorithm / control steps / method claimed. Generally, the specification repeats the language of the claims and does not provide any details of how the invention takes inputs and creates an output as a function of the inputs. Below are a few of the steps and an explanation of how the written description is lacking: In reference to claims 1 and 17, “satisfying a mechanical power requirement associated with propelling the rotorcraft” – The specification states that determining the mechanical power requirement may be carried out in a conventional manner, for example as a function of the mass of the rotorcraft, its forward speed, its vertical speed and the values of the collective pitch and cycle pitch controls of the main rotor blades (paragraph 45). The rotorcraft may include a device dedicated to determining this mechanical power requirement of the rotorcraft. An avionics system equipping the rotorcraft may also determine this mechanical power requirement as a function of information provided by various sensors of the rotorcraft. The calculator can also determine this mechanical power requirement from such information. (paragraph 46, 94). Further, as mentioned above, the mechanical power requirement is not clearly defined in the specification being associated with propelling the rotorcraft. The application fails to identify how the inputs are used to determine a mechanical power requirement and does not provide any algorithm or calculation using the inputs that arrive at the mechanical power requirement. With respect to “defining a first power distribution”. The specification is lacking in guidance of what the claimed function is and how it manages the inputs, the at least one first characteristic and the mechanical power requirement, to arrive at a first power distribution. The specification provides how differing first characteristics can be used as inputs, but fails to explain or show how those inputs are used in a function to arrive at the output of a first power distribution. This is exasperated by the step of “determining a flight phase of the rotorcraft”. This step is also an input into “determining a first power distribution”. Further, the step of determining a flight phase is not explained to provide a showing that applicant had possession of the claimed invention. Paragraph 68 states that the flight phase may be determined as a function of one or more second characteristics of the rotorcraft. There are zero details provided as to what the function or process is to make the determination. Further, there is not any discussion of how the flight phase is used as an input to determine power distribution. Claim 2-3 and 18, recites that a second characteristic value is used in determining the mechyanical power requirements. The specification does provide examples of what the second characteristic values may be, but lacks any details of how this value is used during the determining power distribution step. Claim 4, there is not description of how a state of health of a heat engine can be found using the input provided in the disclosure. Claim 6, recites that the determination of a first power distribution takes into account the preservation of a backup electrical energy reserve, but zero details are provided how this input impacts the determining step. Claim 7, recites that a flight plan is an input into the power determination step, but fails to provide a showing of details of how this input impacts the output. Claim 8, details are not provided of how the instant invention determines a state of health of the electrical energy source as the first characteristic. The specification states that this relates to the age of the source, but does not state how this is found as an input. Claim 9 Claim 13 has a similar issue to claim 1 in that the “second power distribution” is determined from a number of inputs, but a showing of how the inputs are used is lacking. Claim 15 recties “a calculator” but the specification fails to provide details related to the issues recited above for claims 1-14. For example, algorithms and/or calcualtions are not provided to provide a showing of possession of the funcitons / control claimed. Response to Arguments Applicant's arguments filed 05/08/2026 have been fully considered but they are not persuasive. Applicant amended to attempt to overcome the 112a rejections presented in the non-final. The amendment however introduces new matter and fails to fully remedy the lack of algorithms or control details. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to DEVON C KRAMER whose telephone number is (571)272-7118. The examiner can normally be reached Monday- Thursday 7AM-4PM; Friday Mornings. 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. 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. DEVON C. KRAMER Supervisory Patent Examiner Art Unit 3746 /DEVON C KRAMER/Supervisory Patent Examiner, Art Unit 3741
Read full office action

Prosecution Timeline

Show 8 earlier events
Aug 01, 2025
Non-Final Rejection mailed — §112
Nov 03, 2025
Response Filed
Dec 16, 2025
Final Rejection mailed — §112
Apr 20, 2026
Applicant Interview (Telephonic)
Apr 20, 2026
Examiner Interview Summary
May 08, 2026
Request for Continued Examination
May 12, 2026
Response after Non-Final Action
Jul 20, 2026
Non-Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12698813
SPRING KEEPERS AND SPRING ASSEMBLIES INCORPORATING THE SAME
2y 9m to grant Granted Aug 04, 2026
Patent 12674495
BRAKE SYSTEM WITH APPLICATION IN THE AUTOMOTIVE SECTOR WHICH DOES NOT GENERATE POLLUTING WASTE
2y 6m to grant Granted Jul 07, 2026
Patent 12663052
TUBULAR ANTIVIBRATION DEVICE
3y 1m to grant Granted Jun 23, 2026
Patent 12638178
APPARATUS AND METHOD FOR MITIGATING PARTICULATE ACCUMULATION ON A COMPONENT OF A GAS TURBINE
3y 9m to grant Granted May 26, 2026
Patent 12590617
VIBRATION ISOLATION DEVICE
2y 4m 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

6-7
Expected OA Rounds
14%
Grant Probability
30%
With Interview (+16.3%)
3y 9m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 147 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