Prosecution Insights
Last updated: April 19, 2026
Application No. 18/108,992

POWER ELECTRONICS ASSEMBLY AND DOMESTIC APPLIANCE

Non-Final OA §103
Filed
Feb 13, 2023
Examiner
BACHNER, ROBERT G
Art Unit
2898
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Stiebel Eltron GmbH & Co. KG
OA Round
1 (Non-Final)
88%
Grant Probability
Favorable
1-2
OA Rounds
2y 6m
To Grant
94%
With Interview

Examiner Intelligence

Grants 88% — above average
88%
Career Allow Rate
737 granted / 838 resolved
+19.9% vs TC avg
Moderate +6% lift
Without
With
+6.5%
Interview Lift
resolved cases with interview
Typical timeline
2y 6m
Avg Prosecution
32 currently pending
Career history
870
Total Applications
across all art units

Statute-Specific Performance

§101
4.7%
-35.3% vs TC avg
§103
53.3%
+13.3% vs TC avg
§102
18.7%
-21.3% vs TC avg
§112
14.9%
-25.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 838 resolved cases

Office Action

§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 § 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 1-20 are rejected under 35 U.S.C. 103 as being unpatentable over Collins (GB 2 193 844) in view of Hussain (EP 2 777 468). Regarding claim 1. Collins discloses: A power electronics assembly of a domestic appliance comprising: a first relay (RL1 )controlling an electrical contact between a first current-carrying conductor((Contact at bottom of fig 1, connected to RL1)) and an electric consumer of the domestic appliance(Load); a semiconductor switching element (TR1)that switches the electrical contact between the first current-carrying conductor(Contact at bottom of Fig. 1 Connected to RL1) and the electric consumer(load) and is arranged in parallel with the first relay(Arranged in parallel); and a controller(control circuit ) programmed to activate the semiconductor switching element to switch ON the electric consumer before the first relay is closed.(see page 1, 70-105 and page 2,7-37) Collins does not disclose: programmed to activate the semiconductor switching element to switch ON the electric consumer before the first relay is closed in related art, Hussain discloses signaling the device on, and then closing one relay while leaving the other opened, at [0020]-[0025], and Figs 1-5. Hussain discloses that the recited features provide the benefit of efficiently heating the water inside the dishwasher. As such, it would have been obvious to operator the device of Collins as taught by Hussain for the benefit of efficiently heating the water inside the dishwasher. Regarding claim 2. Collins discloses: The power electronics assembly according to claim 1, wherein the controller is further programmed to stop the activation of the semiconductor switching element after the first relay has closed. (see abstract and page 1, 75-118 page 1, 95-115) Regarding claim 3. Collins discloses all of the features of claim 1. Collins does not discloses: The power electronics assembly according to claim 1 further comprising a second relay controlling an electrical contact between a second current-carrying conductor and the electric consumer, wherein the controller is further programmed to close the second relay to switch ON the electric consumer before the semiconductor switching element is activated. IN related art, Hussain discloses: The power electronics assembly according to claim 1 further comprising a second relay controlling an electrical contact between a second current-carrying conductor and the electric consumer, wherein the controller is further programmed to close the second relay to switch ON the electric consumer before the semiconductor switching element is activated. (See Fig. 4, 212 then 220) in related art, Hussain discloses signaling the device on, and then closing one relay while leaving the other opened, at [0020]-[0025], and Figs 1-5. Hussain discloses that the recited features provide the benefit of efficiently heating the water inside the dishwasher. As such, it would have been obvious to operator the device of Collins as taught by Hussain for the benefit of efficiently heating the water inside the dishwasher. Regarding claim 4. Collins discloses: Collins discloses The power electronics assembly according to claim 1, wherein the controller is further programmed to activate the semiconductor switching element before the first relay has opened in order to switch OFF the electric consumer.(see abstract) Regarding claim 5. Collins discloses: The power electronics assembly according to claim 4, wherein the controller is further programmed to stop the activation of the semiconductor switching element after the first relay has opened and before the second relay has opened in order to switch OFF the electric consumer. (See abstract) Regarding claim 6. Collins discloses: The power electronics assembly according to claim 4, wherein the controller is further programmed to stop the activation of the semiconductor switching element after the first relay has opened in order to switch OFF the electric consumer. (See Abstract) Regarding claim 7. Collins discloses: The power electronics assembly according to claim 1, wherein the semiconductor switching element includes a TRIAC. (See abstract, TR1 being a TRIAC) Regarding claim 8. Collins discloses: The power electronics assembly according to claim 1, wherein the first relay includes a monostable switching state.(RL1 and page 1, 100-120) Regarding claim 9. Collins discloses: The power electronics assembly according to claim 3, wherein the first and the second relay each include a monostable switching state.(RL1, and page 1, 100-120) Regarding claim 10. Collins discloses: The power electronics assembly according to claim 1, further comprising a galvanic isolation between the current-carrying conductor(s) and the controller. (Q1) Regarding claim 11. Collins discloses: The power electronics assembly according to claim 1, further comprising a fusible link (FS1)in a connection line of the controller or a smoothing capacitor between connection lines of the controller(FS1 in connection line to control circuit between control circuit and Load). Regarding claim 12. Collins discloses: The power electronics assembly according to claim 1, wherein the electric consumer is an ohmic consumer. (Load being water heater, see abstract) Regarding claim 13. Collins discloses: The power electronics assembly according to claim 12, wherein the ohmic consumer is a heating element. (Load being water heater, see abstract) Regarding claim 14. Collins discloses: A domestic appliance comprising: an electric consumer(Load); a first relay(RL1) controlling an electrical contact between a first current-carrying conductor(conductor where RL1) and the electric consumer(Load); a semiconductor switching element(TR1 that switches the electrical contact between the first current-carrying conductor and the electric consumer and is arranged in parallel with the first relay(TR1 switching between conductor of RL1); and a controller programmed(Control circuit) Collins does not disclose: to activate the semiconductor switching element to switch ON the electric consumer before the first relay is closed. in related art, Hussain discloses signaling the device on, and then closing one relay while leaving the other opened, at [0020]-[0025], and Figs 1-5. Hussain discloses that the recited features provide the benefit of efficiently heating the water inside the dishwasher. As such, it would have been obvious to operator the device of Collins as taught by Hussain for the benefit of efficiently heating the water inside the dishwasher. Regarding claim 15. Collins disclose: The domestic appliance of claim 14, wherein the electric consumer is a heating element.(Load, see abstract) Regarding claim 16. Collins discloses: The domestic appliance of claim 14, wherein the controller is further programmed to stop the activation of the semiconductor switching element after the first relay has closed. (see abstract and page 1, 75-118 page 1, 95-115) Regarding claim 17. Collins discloses all of the features of claim 1. Collins does not discloses: The domestic appliance according to claim 14 further comprising a second relay controlling an electrical contact between a second current-carrying conductor and the electric consumer, wherein the controller is further programmed to close the second relay to switch ON the electric consumer before the semiconductor switching element is activated.IN related art, Hussain discloses: The power electronics assembly according to claim 1 further comprising a second relay controlling an electrical contact between a second current-carrying conductor and the electric consumer, wherein the controller is further programmed to close the second relay to switch ON the electric consumer before the semiconductor switching element is activated. (See Fig. 4, 212 then 220) in related art, Hussain discloses signaling the device on, and then closing one relay while leaving the other opened, at [0020]-[0025], and Figs 1-5. Hussain discloses that the recited features provide the benefit of efficiently heating the water inside the dishwasher. As such, it would have been obvious to operator the device of Collins as taught by Hussain for the benefit of efficiently heating the water inside the dishwasher. Regarding claim 18. Collins discloses: The domestic appliance according to claim 17, wherein the controller is further programmed to activate the semiconductor switching element before the first relay has opened in order to switch OFF the electric consumer. (See Abstract) Regarding claim 19. Collins discloses: A hot water heater comprising: an electric heating element(See Page 1, 5-10); a first relay(RL1) controlling an electrical contact between a first current-carrying conductor and the heating element(RL1 and Load); a semiconductor switching element(TR1) that switches the electrical contact between the first current-carrying conductor and the electric consumer and is arranged in parallel with the first relay(TR1 in parallel with RL1); and a controller(Control circuit) programmed to activate the semiconductor switching element to switch ON the heating element before the first relay is closed. Collins does not disclose: to activate the semiconductor switching element to switch ON the electric consumer before the first relay is closed. in related art, Hussain discloses signaling the device on, and then closing one relay while leaving the other opened, at [0020]-[0025], and Figs 1-5. Hussain discloses that the recited features provide the benefit of efficiently heating the water inside the dishwasher. As such, it would have been obvious to operator the device of Collins as taught by Hussain for the benefit of efficiently heating the water inside the dishwasher. Regarding claim 20. Collins discloses: The hot water heater of claim 19, wherein the controller is further programmed to stop the activation of the semiconductor switching element after the first relay has closed. (see abstract and page 1, 75-118 page 1, 95-115) Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ROBERT G BACHNER whose telephone number is (571)270-3888. The examiner can normally be reached on Monday-Friday, 10-6 EST. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Leonard Chang can be reached at (571) 270-3691. 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. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). 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. /ROBERT G BACHNER/ Primary Examiner, Art Unit 2898
Read full office action

Prosecution Timeline

Feb 13, 2023
Application Filed
Mar 13, 2026
Non-Final Rejection — §103 (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
88%
Grant Probability
94%
With Interview (+6.5%)
2y 6m
Median Time to Grant
Low
PTA Risk
Based on 838 resolved cases by this examiner. Grant probability derived from career allow rate.

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