IP Library › Granted Patent US 6,597,157
Granted Patent Utility
US 6,597,157 · Confirmation No. 2315

PARALLEL PHASED SWITCH CONTROL

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2022-01-25 EBCC.AD Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update 1 View
2018-02-27 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2018-02-27 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2018-02-23 PA.. Power of Attorney 1 View
2018-02-23 N417 Electronic Filing System Acknowledgment Receipt 2 View
2018-02-23 R3.73 Assignee showing of ownership per 37 CFR 3.73 2 View
2010-11-10 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2010-11-10 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2010-11-08 PA.. Power of Attorney 2 View
2010-11-08 LET. Miscellaneous Incoming Letter 2 View
2010-11-08 N417 Electronic Filing System Acknowledgment Receipt 2 View
2002-06-05 TRNA Transmittal of New Application 5 View
2002-06-05 SPEC Specification 14 View
2002-06-05 CLM Claims 4 View
2002-06-05 ABST Abstract 1 View
2002-06-05 DRW Drawings-only black and white line drawings 12 View
2002-06-05 OATH Oath or Declaration filed 3 View
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Quick Facts
Patent No.
US 6,597,157
App. No.
10/164,172
Filed
2002-06-05
Granted
2003-07-22
Examiner
VU, BAO Q
Art Unit
2838
PTA
0 days