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For the Inventor, By the Inventor

Rehovot, Israel

Xtl Biopharmaceuticals Ltd.


USPTO Granted Patents = 8

% Expired Patents = 75.0

Forward Citations = 41

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17 inventors (with patents filed for the assignee):

goldMedal Reza Fathi (6 out of 43 patents)

silverMedal Zhen Yang (6 out of 13 patents)

bronzeMedal Yixin Liu (5 out of 5 patents)

4.  Anthony Sandrasagra (5 out of 5 patents)

5.  Qiang Zhu (4 out of 5 patents)

6.  Yun Liao (3 out of 4 patents)

7.  Kenneth Nawoschik (3 out of 3 patents)

8.  Hyun-Joon Cho (3 out of 3 patents)

9.  Youhong Hu (2 out of 2 patents)

10.  Bin Xu (2 out of 2 patents)

11.  C Richard Wobbe (2 out of 11 patents)

12.  Shlomo Dagan (2 out of 6 patents)

13.  Guolin Li (1 out of 1 patent)

14.  Angela Lam (1 out of 1 patent)

15.  Jie Cao (1 out of 1 patent)


8 patents:

1. 8329703 - Pyrazole compounds (2012-12-11),
2. 8143276 - 4-thio substituted quinoline and naphthyridine compounds (2012-03-27),
3. 8048889 - 3,4-disubstituted coumarin and quinolone compounds (2011-11-01),
4. 7994360 - Benzofuran compounds (2011-08-09),
5. 7923004 - 4-ethynyl pyrazole derivative compounds and methods for treatment of HCV (2011-04-12),
6. RE39586 - Human monoclonal antibody against Hepatitis B virus surface antigen (HBVSAG) (2007-04-23),
7. 7148253 - 4-thio coumarins (2006-12-12),
8. 6146629 - Human monoclonal antibody against Hepatitis B virus surface antigen (2000-11-14),
Company Overview
XTL Biopharmaceuticals is a clinical-stage biopharmaceutical company focused on the acquisition, development, and commercialization of pharmaceutical products for the treatment of autoimmune diseases. The company's lead product candidate is hCDR1, a treatment for systemic lupus erythematosus.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

8 Patents

#42 in Rehovot

#796 in Israel

Rehovot, IL
Rehovot, Israel

Xtl Biopharmaceuticals Ltd.

Forward Citations = 41

17 inventors:

goldMedal Reza Fathi (6 out of 43 patents)

silverMedal Zhen Yang (6 out of 13 patents)

bronzeMedal Yixin Liu (5 out of 5 patents)

4.  Anthony Sandrasagra (5 out of 5 patents)

5.  Qiang Zhu (4 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Xtl Biopharmaceuticals Ltd.. Retrieved from https://idiyas.com/company/xtl-biopharmaceuticals

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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