IP Library › Granted Patent US 857,856
Granted Patent S1
US 857,856 · App. 29/640,243 · Granted Aug 27, 2019

Pipe connecting tube

Inventors: Jong-Tae Lee (Seoul, KR); Kiwoong Hwang (Yangju-si, KR)
Assignees: PPI PYUNGWHA CO., LTD.; PPI AMERICA INC.
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Quick Facts
Patent No.
US 857,856
App. No.
29/640,243
Granted
Aug 27, 2019
Kind
S1
Claims (1)

The ornamental design for a pipe connecting tube, as shown and described.

Assignments (3)
CHANGE OF NAME Recorded Mar 26, 2025
From: PPI CO., LTD.
To: PPI PIPE CO., LTD.
Reel/Frame 070629/0253 →
CHANGE OF NAME Recorded Mar 26, 2025
From: PPI PYUNGWHA CO., LTD.
To: PPI CO., LTD.
Reel/Frame 070629/0360 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 13, 2018
From: LEE, JONG-TAE; HWANG, KIWOONG
To: PPI PYUNGWHA CO., LTD.; PPI AMERICA INC.
Reel/Frame 045576/0948 →
Priority Claims (1)
KR 30-2017-0048141 · Oct 17, 2017 · national