| Number | Date | Country | Kind |
|---|---|---|---|
| 201930021079.X | Jan 2019 | CN | national |
| Number | Name | Date | Kind |
|---|---|---|---|
| D330541 | Burrow | Oct 1992 | S |
| 5631618 | Trumper et al. | May 1997 | A |
| D539220 | Iwakura | Mar 2007 | S |
| D550622 | Shih | Sep 2007 | S |
| 7839255 | Nagano | Nov 2010 | B2 |
| 8009001 | Cleveland | Aug 2011 | B1 |
| D669854 | Kobayashi | Oct 2012 | S |
| 10784034 | Yang | Sep 2020 | B2 |
| D912626 | Song | Mar 2021 | S |
| D926134 | Chung | Jul 2021 | S |
| 11463013 | Jin | Oct 2022 | B2 |
| 20040244636 | Meadow, Jr. et al. | Dec 2004 | A1 |
| 20050024179 | Chandrasekaran et al. | Feb 2005 | A1 |
| 20070273465 | Feng | Nov 2007 | A1 |
| 20130313511 | Kim et al. | Nov 2013 | A1 |
| 20180069117 | Cho et al. | Mar 2018 | A1 |
| 20180085786 | Songatikamas et al. | Mar 2018 | A1 |
| 20180226182 | Fe et al. | Aug 2018 | A1 |
| 20190272936 | Zhang et al. | Sep 2019 | A1 |
| 20200251272 | Song | Aug 2020 | A1 |
| 20210407729 | Yan | Dec 2021 | A1 |
| 20220102060 | Fujii | Mar 2022 | A1 |
| Number | Date | Country |
|---|---|---|
| 2476085 | Feb 2002 | CN |
| Entry |
|---|
| “Magnetic Cores”. Found online Jun. 28, 2022 at powertransformersindia.wordpress.com. Reference dated Jun. 20, 2016. Retrieved from https://powertransformersindia.wordpress.com/2016/06/20/3-main-types-of-magnetic-cores-used-in-transformers/. (Year: 2016). |
| “Ferrite Cores”. Found online Jun. 28, 2022 at researchgate.net. Reference dated Jun. 2020. Retrieved from https://www.researchgate.net/figure/Different-shapes-of-Ferrite-cores-a-E-I-core-b-E-E-core-c-U-core-d-U-I-core_fig1_347529616. (Year: 2020). |
| “Hondark Transformer Core”. Found online Jun. 28, 2022 at amazon.com. Reference dated Mar. 17, 2019. Retrieved from https://www.amazon.com/Bobbin-Transformer-ferrite-Isolator-Inductor/dp/B07PNZ7CZ2/ref=pd_day0_sccl_2_5/133-1437029-9147658. (Year: 2019). |
| Non-Final Rejection dated Jun. 13, 2022 of the U.S. Appl. No. 16/740,554. |
| The 2nd Office Action dated Apr. 16, 2021 from CN patent application No. 201910037335.3. |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 29697318 | Jul 2019 | US |
| Child | 29769310 | US |