IP Library › Granted Patent US 6,626,663
Granted Patent Utility Small
US 6,626,663 · Confirmation No. 3298

PROCESSES FOR REDISTRIBUTING HEAT FLUX ON PROCESS TUBES WITHIN PROCESS HEATERS, AND PROCESS HEATERS INCLUDING THE SAME

Inventor: Naiping Zhu
Patented Case View Patent ↗
⬇ PDF
 Code Description Pages PDF
2018-10-24 SES.REQ.ELC Assertion of entitlement to small entity status via Patent Application Information Retrieval(PAIR) 1 View
2005-06-10 COCOUT Certificate of Correction - Post Issue Communication 1 View
2003-07-10 IFEE Issue Fee Payment (PTO-85B) 1 View
2002-08-16 TRNA Transmittal of New Application 1 View
2002-08-16 SPEC Specification 8 View
2002-08-16 CLM Claims 4 View
2002-08-16 ABST Abstract 1 View
2002-08-16 DRW Drawings-only black and white line drawings 2 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 6,626,663
App. No.
10/219,934
Filed
2002-08-16
Granted
2003-09-30
Art Unit
3749
PTA
0 days