IP Library › Granted Patent US 6,597,221
Granted Patent Utility
US 6,597,221 · Confirmation No. 5701

POWER CONVERTER CIRCUIT AND METHOD FOR CONTROLLING

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2020-07-14 TRIAL.CERT.M Trial Certificate Mailed 2 View
2019-10-30 CAFC.DEC.DIS Decision by Court of Appeals for the Federal Circuit – Dismissed by Court 2 View
2019-07-25 CAFC.AP.NTC Appeal to Court of Appeals for the Federal Circuit (CAFC) 6 View
2019-05-23 TRIAL.TRMFWD Trial Termination or Final Written Decision 38 View
2018-09-18 RETMAIL Mail returned to USPTO as undelivered 2 View
2018-09-12 C.AD.PAIR Change of Address via Patent Application Information Retrieval (PAIR) 1 View
2018-09-11 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2018-09-11 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2018-08-30 PA.. Power of Attorney 2 View
2018-08-30 R3.73 Assignee showing of ownership per 37 CFR 3.73 2 View
2018-08-30 N417 Electronic Filing System Acknowledgment Receipt 2 View
2018-05-24 TRIAL.REQ.G Request for Trial Granted 16 View
2017-07-21 SOL.NTC.SUIT Report on the filing or determination of an action regarding a patent 1 View
2017-05-03 SOL.NTC.SUIT Report on the filing or determination of an action regarding a patent 1 View
2002-06-28 TRNA Transmittal of New Application 3 View
2002-06-28 SPEC Specification 24 View
2002-06-28 CLM Claims 8 View
2002-06-28 ABST Abstract 1 View
2002-06-28 DRW Drawings-only black and white line drawings 2 View
2002-06-28 OATH Oath or Declaration filed 2 View
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Quick Facts
Patent No.
US 6,597,221
App. No.
10/184,539
Filed
2002-06-28
Granted
2003-07-22
Pub. No.
US20020163371A1
Art Unit
2816
PTA
-5 days