skip navigationU S P T O SealUnited States Patent and Trademark Office AOTW logo
Home|Site Index|Search|Guides|Contacts|eBusiness|eBiz alerts|News|Help
Assignments on the Web > Patent Query
Patent Assignment Assignee Details
NOTE:Results display only for issued patents and published applications. For pending or abandoned applications please consult USPTO staff.

Assignee Name : HANGZHOU BIOTEST BIOTECH CO., LTD
Total Assignments: 3
Assignment: 1
Reel/Frame:045173/0246   Pages: 8
Recorded: 03/12/2018
Attorney Dkt #:0896.23
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
WU, JOHN
Exec Dt:
01/26/2018
2
ZHU, YANGYU
Exec Dt:
01/26/2018
3
COGAN, LORRAINE C.
Exec Dt:
01/26/2018
4
HONG, LIANG
Exec Dt:
02/07/2018
5
WU, SHUJIANG
Exec Dt:
02/07/2018
Assignee
1
HANGZHOU BIOTEST BIOTECH CO., LTD
NO. 17, TIANFU RD. ZHONGTAI STREET, YUHANG DISTRICT
ZHEJIANG
HANGZHOU, CHINA 325001
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11213814
US20180272337
15918030
Correspondence name and address
SWANSON & BRATSCHUN, L.L.C.
8210 SOUTHPARK TERRACE
LITTLETON, CO 80120
Assignment: 2
Reel/Frame:062451/0092   Pages: 5
Recorded: 01/23/2023
Attorney Dkt #:0256/0108PUS2
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HONG, LIANG
Exec Dt:
09/28/2022
2
GENG, HUI
Exec Dt:
09/28/2022
Assignee
1
HANGZHOU BIOTEST BIOTECH CO., LTD
NO.27, TUYI ROAD, CANGQIAN STREET, YUHANG DISTRICT
HANGZHOU, ZHEJIANG, CHINA 311112
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20230128976
17969572
Correspondence name and address
MUNCY, GEISSLER, OLDS & LOWE, PC
125 S. ROYAL ST.
ALEXANDRIA, VA 22314
Assignment: 3
Reel/Frame:064581/0140   Pages: 4
Recorded: 08/14/2023
Attorney Dkt #:0256/0237PUS1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
WU, SHUJIANG
Exec Dt:
07/10/2023
2
ZHAO, QIHUI
Exec Dt:
07/10/2023
3
GENG, HUI
Exec Dt:
07/10/2023
4
HONG, LIANG
Exec Dt:
07/10/2023
Assignee
1
HANGZHOU BIOTEST BIOTECH CO., LTD
NO.27, TUYI ROAD, CANGQIAN STREET, YUHANG DISTRICT
HANGZHOU, CHINA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
D1086484
NONE
29880233
Correspondence name and address
MUNCY, GEISSLER, OLDS & LOWE, PC
125 S. ROYAL ST.
ALEXANDRIA, VA 22314

Search Results as of: 08/16/2025 11:01 AM
If you have any comments or questions concerning the data displayed, contact PRD / Assignments at 571-272-3350. v.2.6
Web interface last modified: August 25, 2017 v.2.6
| .HOME | INDEX| SEARCH | eBUSINESS | CONTACT US | PRIVACY STATEMENT