Prosecution Insights
Last updated: May 29, 2026
Application No. 17/767,438

Dielectric Transducer, Method for the Production Thereof and Actuator, Sensor or Generator

Final Rejection §102§103
Filed
Apr 08, 2022
Priority
Oct 25, 2019 — DE 102019128822.3 +2 more
Examiner
ROSENAU, DEREK JOHN
Art Unit
2837
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
UNIVERSITÄT DES SAARLANDES
OA Round
2 (Final)
77%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
86%
With Interview

Examiner Intelligence

Grants 77% — above average
77%
Career Allowance Rate
960 granted / 1240 resolved
+9.4% vs TC avg
Moderate +8% lift
Without
With
+8.3%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
28 currently pending
Career history
1267
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
81.1%
+41.1% vs TC avg
§102
11.0%
-29.0% vs TC avg
§112
4.5%
-35.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1240 resolved cases

Office Action

§102 §103
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. Claims 1-3, 5, 8, 9, and -15 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Kwon et al. (US 2011/0116171). With respect to claim 1, Kwon et al. discloses a dielectric transducer (Figs 3, 7H) for use in a sensor, actuator or generator comprising a plurality of layers of transducer foils (items 111-118), wherein on at least one side of each transducer foil an electrically contactable and conductive layer forming an electrode layer (items 121-128) is applied, at least two contact elements (items 131-138, 141, and 142), each of which is arranged at least partially in a recess (items H1 and H2) or in a through- channel and extends over at least one layer of transducer foils (Fig 3), and a printer circuit board (item S) for stiffening as well as for electrical contacting the transducer with an electrical or electronic component on one side or on two opposite sides of the transducer (Fig 7G), wherein adjacent electrode layers electrically conductively connected to different contact elements (Fig 3). With respect to claim 2, Kwon et al. discloses the dielectric transducer according to claim 1, wherein at least one of the contact elements (items 141 and 142) extends into the transducer in thickness direction, or comprises a coating which covers an inner side of the recess or of the through-channel (Fig 3). With respect to claim 3, Kwon et al. discloses the dielectric transducer according to claim 1, wherein at least one of the contact elements is stair-shaped or comb-shaped (Fig 3). With respect to claim 5, Kwon et al. discloses the dielectric transducer according to claim 1, wherein each transducer foil comprises at least one surface area in which the electrode layer is interrupted (Fig 3, wherein for each electrode 121-128, there is an interrupted portion between their ends and the opposite contact element). With respect to claim 8, Kwon et al. discloses the dielectric transducer according to claim 1, wherein adjacent transducer foils are connected to one another in edge areas (Fig 3). With respect to claim 9, Kwon et al. discloses the dielectric transducer according to claim 1, wherein between 2 and 100 transducer foils are provided (Fig 3). With respect to claim 15, Kwon et al. discloses a sensor, actuator or generator comprising a dielectric transducer according to claim 1 (Abstract). 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. Claims 4, 6, and 7 are rejected under 35 U.S.C. 103 as being unpatentable over Kwon et al. in view of Kumegawa et al. (US 2020/0350484). With respect to claim 4, Kwon et al. discloses the dielectric transducer according to claim 1. Kwon et al. does not disclose that the electrode layer comprises a non-metallic material or is made of a non-metallic material. Kumegawa et al. teaches a piezoelectric device in which the electrode layer comprises a non-metallic material or is made of a non-metallic material (Paragraph 32). Before the effective filing, it would have been obvious to one of ordinary skill in the art to combine the non-metallic electrode materials of Kumegawa et al. with the piezoelectric device of Kwon et al. as it has been held that the selection of materials based on their art-recognized suitability for a intended purpose is obvious (In re Leshin, 125 USPQ 416). With respect to claim 6, Kwon et al. discloses the dielectric transducer according to claim 1. Kwon et al. does not disclose that the transducer foils have a thickness of between 5 µm and 200 µm and/or are made of a polymer material comprising polysiloxane. Kumegawa et al. teaches a piezoelectric device in which the transducer foils have a thickness of between 5 µm and 200 µm and/or are made of a polymer material comprising polysiloxane (Paragraph 34). Before the effective filing, it would have been obvious to one of ordinary skill in the art to combine the transducer layer thickness of Kumegawa et al. with the piezoelectric device of Kwon et al. as it has been held that a mere change in size or relative dimensions is obvious (Gardner v. TEC Systems. Inc., 220 USPQ 777). With respect to claim 7, Kwon et al. discloses the dielectric transducer according to claim 1. Kwon et al. does not disclose that the thickness of an electrode layer is between 500 nm and 100 µm. Kumegawa et al. teaches a piezoelectric device in which the thickness of an electrode layer is between 500 nm and 100 µm (Paragraph 31). Before the effective filing, it would have been obvious to one of ordinary skill in the art to combine the electrode layer thickness of Kumegawa et al. with the piezoelectric device of Kwon et al. as it has been held that a mere change in size or relative dimensions is obvious (Gardner v. TEC Systems. Inc., 220 USPQ 777). Response to Arguments Applicant's arguments filed 29 January 2026 have been fully considered but they are not persuasive. Applicant argues that the “fixing frame” (item 40) of Kwon does not correspond to the claimed printed circuit board. However, this fixing frame is not cited for this feature. This argument is therefore rendered moot. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). 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 Derek John Rosenau whose telephone number is (571)272-8932. The examiner can normally be reached Monday-Thursday 7 am to 5:30 pm Central Time. 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, Dedei Hammond can be reached at (571) 270-7938. 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. /DEREK J ROSENAU/Primary Examiner, Art Unit 2837
Read full office action

Prosecution Timeline

Apr 08, 2022
Application Filed
Jul 29, 2025
Non-Final Rejection mailed — §102, §103
Jan 29, 2026
Response Filed
Mar 24, 2026
Final Rejection mailed — §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12640703
ACOUSTIC WAVE DEVICE WITH DIELECTRIC LAYER FOR REDUCED TRANSVERSE LEAKAGE
3y 10m to grant Granted May 26, 2026
Patent 12640704
PIEZOELECTRIC DEVICE
3y 7m to grant Granted May 26, 2026
Patent 12635413
DRIVING OF PIEZOELECTRICS FOR MEMS-BASED COOLING SYSTEMS
3y 10m to grant Granted May 19, 2026
Patent 12629969
PIEZOELECTRIC DIRECT CURRENT GENERATOR
3y 9m to grant Granted May 19, 2026
Patent 12633894
ELASTIC WAVE DEVICE, MODULE
3y 8m to grant Granted May 19, 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

3-4
Expected OA Rounds
77%
Grant Probability
86%
With Interview (+8.3%)
2y 11m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 1240 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