IP Library › Granted Patent US 6,642,774
Granted Patent Utility
US 6,642,774 · Confirmation No. 6725

HIGH PRECISION CHARGE PUMP REGULATION

Inventor: Bo Li
Patented Case View Patent ↗
⬇ PDF
 Code Description Pages PDF
2021-08-16 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2021-08-16 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2021-08-10 C.AD Change of Address 2 View
2021-08-10 N417 Electronic Filing System Acknowledgment Receipt 2 View
2021-08-10 MFEE.C.AD Maintenance Fee Address Change 2 View
2021-08-10 PA.. Power of Attorney 3 View
2021-08-10 R3.73 Assignee showing of ownership per 37 CFR 3.73 2 View
2003-08-28 IFEE Issue Fee Payment (PTO-85B) 1 View
2002-06-28 TRNA Transmittal of New Application 5 View
2002-06-28 SPEC Specification 23 View
2002-06-28 CLM Claims 7 View
2002-06-28 ABST Abstract 1 View
2002-06-28 DRW Drawings-only black and white line drawings 8 View
2002-06-28 OATH Oath or Declaration filed 5 View
2002-06-28 LET. Miscellaneous Incoming Letter 1 View
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this application's details
Quick Facts
Patent No.
US 6,642,774
App. No.
10/187,219
Filed
2002-06-28
Granted
2003-11-04
Art Unit
2816
PTA
-4 days