IP Library › Granted Patent US 16,806,489

Granted Patent Utility

US 16,806,489 · Confirmation No. 4325

SEMICONDUCTOR DIE HAVING A DRIFT REGION WITH A CHARGE COMPENSATION REGION FORMED THEREIN WHERE THE CHARGE COMPENSATION REGION HAS A PLURALITY OF GUARD RINGS FORMED IN FIRST AND SECOND OPPOSITE DOPING TYPE PORTIONS

Inventors: Philipp Steinmann, Edward Robert Van Brunt, Sei-Hyung Ryu, Jae-Hyung Park

Applicant: Wolfspeed, Inc.

Patented Case View Publication ↗

	Code	Description	Pages	PDF
2026-08-19	`ISSUE.NTF`	Issue Notification	2	View
2026-06-24	`IFEE`	Issue Fee Payment (PTO-85B)	1	View
2026-06-24	`N417`	Electronic Filing System Acknowledgment Receipt	2	View
2026-06-24	`N417.PYMT`	Electronic Fee Payment	2	View
2026-05-11	`M327`	Miscellaneous Communication to Applicant - No Action Count	2	View
2026-04-22	`NOA`	Notice of Allowance and Fees Due (PTOL-85)	10	View
2026-04-22	`SRFW`	Search information including classification, databases and other search related notes	1	View
2026-04-22	`IIFW`	Issue Information including classification, examiner, name, claim, renumbering, etc.	3	View
2026-04-22	`SRNT`	Examiner's search strategy and results	2	View
2026-02-12	`BD.A`	Amendment/Argument after Patent Board Decision	—	View
2026-02-12	`BD.A`	Amendment/Argument after Patent Board Decision	1	View
2026-02-12	`CLM`	Claims	4	View
2026-02-12	`REM`	Applicant Arguments/Remarks Made in an Amendment	1	View
2026-02-12	`N417`	Electronic Filing System Acknowledgment Receipt	2	View
2026-02-12	`WFEE`	Fee Worksheet (SB06)	1	View
2026-01-30	`APDP`	Patent Board Decision - Examiner Affirmed in Part	12	View
2025-02-19	`AP_DK_M`	Appeal Docketing Notice	2	View
2025-02-12	`APRB`	Reply Brief Filed	9	View
2025-02-12	`N417.PYMT`	Electronic Fee Payment	2	View
2025-02-12	`N417`	Electronic Filing System Acknowledgment Receipt	2	View
2024-12-23	`APEA`	Examiner's Answer to Appeal Brief	20	View
2024-09-06	`AP.B`	Appeal Brief Filed	25	View
2024-09-06	`N417`	Electronic Filing System Acknowledgment Receipt	2	View
2024-07-15	`N417`	Electronic Filing System Acknowledgment Receipt	2	View
2024-07-15	`N417.PYMT`	Electronic Fee Payment	2	View
2024-07-15	`N/AP`	Notice of Appeal Filed	2	View
2024-07-05	`CTAV`	Advisory Action (PTOL-303)	2	View
2024-07-05	`ANE.I`	Amendment After Final or under 37CFR 1.312, initialed by the examiner.	1	View
2024-05-21	`A.NE`	Response After Final Action	—	View
2024-05-21	`N417`	Electronic Filing System Acknowledgment Receipt	2	View
2024-05-21	`A.NE`	Response After Final Action	1	View
2024-05-21	`CLM`	Claims	5	View
2024-05-21	`REM`	Applicant Arguments/Remarks Made in an Amendment	1	View
2024-05-21	`WFEE`	Fee Worksheet (SB06)	1	View
2024-04-15	`CTFR`	Final Rejection	27	View
2024-04-15	`892`	List of references cited by examiner	1	View
2024-04-15	`FWCLM`	Index of Claims	1	View
2024-04-15	`SRFW`	Search information including classification, databases and other search related notes	1	View
2024-04-15	`SRNT`	Examiner's search strategy and results	1	View
2024-04-15	`SRNT`	Examiner's search strategy and results	3	View
2024-01-16	`A...`	Amendment/Request for Reconsideration-After Non-Final Rejection	—	View
2024-01-16	`A...`	Amendment/Request for Reconsideration-After Non-Final Rejection	1	View
2024-01-16	`CLM`	Claims	7	View
2024-01-16	`REM`	Applicant Arguments/Remarks Made in an Amendment	9	View
2024-01-16	`N417`	Electronic Filing System Acknowledgment Receipt	2	View
2024-01-16	`N417.PYMT`	Electronic Fee Payment	2	View
2024-01-16	`WFEE`	Fee Worksheet (SB06)	1	View
2023-11-03	`CTNF`	Non-Final Rejection	21	View
2023-11-03	`SRFW`	Search information including classification, databases and other search related notes	1	View
2023-11-03	`FWCLM`	Index of Claims	1	View
2023-11-03	`SRNT`	Examiner's search strategy and results	3	View
2023-09-28	`RCEX`	Request for Continued Examination (RCE)	3	View
2023-09-28	`AMSB`	Amendment Submitted/Entered with Filing of Continued Prosecution Application (CPA)/Request for Continued Examination(RCE)	1	View
2023-09-28	`CLM`	Claims	5	View
2023-09-28	`REM`	Applicant Arguments/Remarks Made in an Amendment	8	View
2023-09-28	`WFEE`	Fee Worksheet (SB06)	2	View
2023-09-28	`N417`	Electronic Filing System Acknowledgment Receipt	3	View
2023-09-28	`WFEE`	Fee Worksheet (SB06)	1	View
2023-08-10	`CTFR`	Final Rejection	18	View
2023-08-10	`FWCLM`	Index of Claims	1	View
2023-05-12	`A...`	Amendment/Request for Reconsideration-After Non-Final Rejection	1	View
2023-05-12	`SPEC`	Specification	1	View
2023-05-12	`CLM`	Claims	5	View
2023-05-12	`REM`	Applicant Arguments/Remarks Made in an Amendment	7	View
2023-05-12	`N417`	Electronic Filing System Acknowledgment Receipt	2	View
2023-05-12	`WFEE`	Fee Worksheet (SB06)	1	View
2023-02-24	`CTNF`	Non-Final Rejection	15	View
2023-02-24	`892`	List of references cited by examiner	1	View
2023-02-24	`FWCLM`	Index of Claims	1	View
2023-02-24	`SRFW`	Search information including classification, databases and other search related notes	1	View
2023-02-24	`SRNT`	Examiner's search strategy and results	7	View
2023-02-24	`FOR`	Foreign Reference	20	View
2023-02-24	`BIB`	Bibliographic Data Sheet	1	View
2023-01-09	`RCEX`	Request for Continued Examination (RCE)	3	View
2023-01-09	`AMSB`	Amendment Submitted/Entered with Filing of Continued Prosecution Application (CPA)/Request for Continued Examination(RCE)	1	View
2023-01-09	`REM`	Applicant Arguments/Remarks Made in an Amendment	6	View
2023-01-09	`WFEE`	Fee Worksheet (SB06)	2	View
2023-01-09	`N417`	Electronic Filing System Acknowledgment Receipt	3	View
2023-01-09	`SPEC`	Specification	1	View
2023-01-09	`CLM`	Claims	5	View
2023-01-09	`WFEE`	Fee Worksheet (SB06)	1	View
2022-11-18	`CTFR`	Final Rejection	25	View
2022-11-18	`SRFW`	Search information including classification, databases and other search related notes	1	View
2022-11-18	`FWCLM`	Index of Claims	1	View
2022-11-18	`SRNT`	Examiner's search strategy and results	1	View
2022-11-18	`BIB`	Bibliographic Data Sheet	1	View
2022-10-13	`N570`	Communication - Re: Power of Attorney (PTOL-308)	1	View
2022-10-13	`N570`	Communication - Re: Power of Attorney (PTOL-308)	1	View
2022-10-05	`PA..`	Power of Attorney	2	View
2022-10-05	`N417`	Electronic Filing System Acknowledgment Receipt	2	View
2022-08-18	`A...`	Amendment/Request for Reconsideration-After Non-Final Rejection	1	View
2022-08-18	`SPEC`	Specification	1	View
2022-08-18	`CLM`	Claims	5	View
2022-08-18	`REM`	Applicant Arguments/Remarks Made in an Amendment	6	View
2022-08-18	`N417`	Electronic Filing System Acknowledgment Receipt	3	View
2022-08-18	`WFEE`	Fee Worksheet (SB06)	1	View
2022-05-26	`CTNF`	Non-Final Rejection	22	View
2022-05-26	`FWCLM`	Index of Claims	1	View
2022-05-26	`SRFW`	Search information including classification, databases and other search related notes	1	View
2022-05-26	`BIB`	Bibliographic Data Sheet	1	View
2022-05-26	`SRNT`	Examiner's search strategy and results	10	View
2022-05-26	`1449`	List of References cited by applicant and considered by examiner	2	View
2022-05-26	`1449`	List of References cited by applicant and considered by examiner	2	View
2022-04-18	`APP.FILE.REC`	Filing Receipt	4	View
2022-04-18	`N570`	Communication - Re: Power of Attorney (PTOL-308)	1	View
2022-04-14	`PA..`	Power of Attorney	2	View
2022-04-14	`ADS`	Application Data Sheet	9	View
2022-04-14	`N417`	Electronic Filing System Acknowledgment Receipt	2	View
2022-04-14	`R46C.REQ`	Request under 37CFR1.46(c) to correct, update, change applicant	2	View
2022-02-23	`WFEE`	Fee Worksheet (SB06)	1	View
2022-02-23	`ELC.`	Response to Election / Restriction Filed	1	View
2022-02-23	`CLM`	Claims	4	View
2022-02-23	`REM`	Applicant Arguments/Remarks Made in an Amendment	4	View
2022-02-23	`N417`	Electronic Filing System Acknowledgment Receipt	2	View
2021-12-27	`CTRS`	Requirement for Restriction/Election	6	View
2021-12-27	`FWCLM`	Index of Claims	1	View
2021-09-02	`NTC.PUB`	Notice of Publication	1	View
2021-08-18	`IDS`	Information Disclosure Statement (IDS) Form (SB08)	4	View
2021-08-18	`FOR`	Foreign Reference	26	View
2021-08-18	`FOR`	Foreign Reference	32	View
2021-08-18	`REF.OTHER`	Other reference-Patent/Application/Search Documents	18	View
2021-08-18	`N417`	Electronic Filing System Acknowledgment Receipt	2	View
2020-05-11	`OATH`	Oath or Declaration filed	8	View
2020-05-11	`N417`	Electronic Filing System Acknowledgment Receipt	2	View
2020-05-01	`APP.FILE.REC`	Filing Receipt	4	View
2020-04-29	`CFILE`	Request for Corrected Filing Receipt	6	View
2020-04-29	`ADS`	Application Data Sheet	9	View
2020-04-29	`N417`	Electronic Filing System Acknowledgment Receipt	2	View
2020-03-18	`WFEE`	Fee Worksheet (SB06)	1	View
2020-03-18	`APP.FILE.REC`	Filing Receipt	4	View
2020-03-18	`M327`	Miscellaneous Communication to Applicant - No Action Count	1	View
2020-03-02	`PA..`	Power of Attorney	2	View
2020-03-02	`IDS`	Information Disclosure Statement (IDS) Form (SB08)	4	View
2020-03-02	`SPEC`	Specification	15	View
2020-03-02	`CLM`	Claims	5	View
2020-03-02	`ABST`	Abstract	1	View
2020-03-02	`DRW`	Drawings-only black and white line drawings	8	View
2020-03-02	`WFEE`	Fee Worksheet (SB06)	2	View
2020-03-02	`N417`	Electronic Filing System Acknowledgment Receipt	3	View
2020-03-02	`ADS`	Application Data Sheet	9	View

Inventors

Philipp Steinmann Durham, NC

Edward Robert Van Brunt Raleigh, NC

Sei-Hyung Ryu Cary, NC

Jae-Hyung Park Apex, NC

Attorneys & Agents of Record

WAYNE ELLENBOGEN Reg. 43602 Attorney · MYERS BIGEL, P.A.

CHARLES JACOBSON Reg. 53061 Attorney · CREE, INC

NEEDHAM BODDIE Reg. 40519 Attorney · MYERS BIGEL SIBLEY AND SAJOVEC, LLP

SRIDEVI BASAVARAJU Reg. 66253 Agent · MYERS BIGEL P.A.

JAMES CANNON Reg. 35839 Attorney · MYERS BIGEL SIBLEY & SAJOVEC

ERIN BOBAY Reg. 66660 Attorney · MYERS BIGEL SIBLEY & SAJOVEC P.A.

JULIO GARCERAN DE VALL Reg. 37138 Attorney · CREE, INC.

HEIDI MCCRAY Reg. 83678 Attorney

RACHEL RUTLEDGE Reg. 66971 Attorney

ROHAN SABAPATHYPILLAI Reg. 51074 Attorney · MYERS BIGEL SIBLEY & SAJOVEC, PA

DAVID AYERS Reg. 40493 Attorney · MYERS BIGEL, P.A.

ANTHONY DEROSA Reg. 72221 Attorney · MYERS BIGEL, P.A.

JOHN MARBUT Reg. 78540 Agent · MYERS BIGEL, P.A.

JULIE RICHARDSON Reg. 40142 Attorney · MYERS BIGEL SIBLEY & SAJOVEC, PA

LAURA KELLEY Reg. 48441 Attorney · MYERS BIGEL SIBLEY AND SAJOVEC PA

SEOKHOON HONG Reg. 800020 Agent · MYERS BIGEL, P.A.

DAVID MOORE Reg. 42011 Attorney · MYERS BIGEL SIBLEY AND SAJOVEC, PA

STEPHEN PETROSKI Reg. 64947 Attorney · MYERS BIGEL SIBLEY & SAJOVEC, PA

LESLEY PASMAN Reg. 77859 Agent · MYERS BIGEL P.A.

MADISON WAYLAND Reg. 83111 Agent · MYERS BIGEL, P.A.

GRANT SCOTT Reg. 36925 Attorney · MYERS BIGEL SIBLEY AND SAJOVEC

ERIC NUSS Reg. 40106 Attorney · RAMPART COMMUNICATIONS

GEORGE PATSARIKAS Reg. 74670 Attorney · BURRIS LAW, PLLC

LORENA GOMEZ Reg. 81809 Attorney

ARMANDO CORONA Reg. 82952 Agent · MYERS BIGEL, P.A.

Classification

USPC 257/213

H10D30/665 H10D62/106 H10D62/111

Prosecution

Examiner: MAI, ANH D
Art Unit: 2893
Customer No.: 65106
Docket No.: 5308.3003
Confirmation No.: 4325

Publication

Pub. No.: US20210273090A1
Pub. Date: 2021-09-02

U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS COLLATERAL AGENT

from WOLFSPEED, INC.

NOTICE OF GRANT OF SECURITY INTEREST IN INTELLECTUAL PROPERTY Recorded 2026-03-26

075280/0919 →

WOLFSPEED, INC.

from U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS COLLATERAL AGENT

RELEASE OF SECURITY INTEREST IN INTELLECTUAL PROPERTY COLLATERAL AT REEL/FRAME NO. 64185/0755 Recorded 2025-09-30

072989/0001 →

U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS COLLATERAL AGENT

from WOLFSPEED, INC.

NOTICE OF GRANT OF SECURITY INTEREST IN INTELLECTUAL PROPERTY Recorded 2025-09-30

072992/0113 →

U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS COLLATERAL AGENT

from WOLFSPEED, INC.

NOTICE OF GRANT OF SECURITY INTEREST IN INTELLECTUAL PROPERTY Recorded 2025-09-30

072992/0381 →

U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS COLLATERAL AGENT

from WOLFSPEED, INC.

NOTICE OF GRANT OF SECURITY INTEREST IN INTELLECTUAL PROPERTY Recorded 2025-09-30

072992/0467 →

U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS COLLATERAL AGENT

from WOLFSPEED, INC.

NOTICE OF GRANT OF SECURITY INTEREST IN INTELLECTUAL PROPERTY Recorded 2025-09-30

072992/0588 →

U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION

from WOLFSPEED, INC.

SECURITY INTEREST Recorded 2023-06-30

064185/0755 →

WOLFSPEED, INC.

from CREE, INC.

CHANGE OF NAME Recorded 2021-10-22

057891/0880 →

CREE, INC.

from PARK, JAE-HYUNG, STEINMANN, PHILIPP, RYU, SEI-HYUNG, VAN BRUNT, EDWARD ROBERT

ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded 2020-05-11

052626/0452 →

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Quick Facts

App. No.: 16/806,489
Filed: 2020-03-02
Pub. No.: US20210273090A1
Examiner: MAI, ANH D
Art Unit: 2893

External Links

USPTO Patent Center↗ Pre-Grant Publication PDF↗