Patent Profile of the Person

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Profile: LIU, Dazhan (Update: 01.07.2024)

Date cumulate

**Cumulated data**
Total of filed applications, of which for:	1
Patents	1
Short-term patents	0
Utility models	0
Titles of protection granted/issued, of which:
patents (BI)	1/1
short term patents (BISD)	0/0
utitity models (MU)	0/0

Total of valid titles of protection	1 (BI:1 BISD:0 MU:0)
Invalid patents with the right of revalidation	0
Total titles of protection being valid more than 5 years	1
Average life of patent (years)	13.0 BI: 13.0

Anul	Brevete de invenţie	Total
2014	1	1

Anul	Brevete de invenţie	Brevete de invenţie de scurtă durată	Modele de utilitate
2018	1	0	0

Top IPC subclasses

**Top IPC subclasses**
Nr.	Subclasă	Total	Descrierea
1	C07F	4	acyclic, carbocyclic, or heterocyclic compounds containing elements other than carbon, hydrogen, hal
2	A61P	2	Specific therapeutic activity of chemical compounds or medicinal preparations
3	C07D	1	Heterocyclic compounds
4	A61K	1	Preparations for medical, dental, or toilet purposes

Top IPC subgroups

**Top IPC subgroups**
Nr.	Subgrupă	Total
1	A61K 31/52	1
2	A61P 31/20	1
3	A61P 31/18	1
4	C07D 473/34	1
5	C07F 9/40	1
6	C07F 9/44	1
7	C07F 9/6561	1
8	C07F 9/6524	1

Cooperarea

Top-10 Inventors/Co-inventors (in the case of inventor profile)

**Top-10 Inventors/Co-inventors (in the case of inventor profile)**
Nr.	Nume	Total
1	SHI Bing	1
2	WANG Fang	1
3	YU, Richard, Hung Chiu	1

Top-10 Co-applicants/applicants (in the case of inventor profile)

**Top-10 Co-applicants/applicants (in the case of inventor profile)**
Nr.	Nume	Total
1	GILEAD SCIENCES, INC.	1

Top-10 Co-owners/owners (in the case of inventor profile)

**Top-10 Co-owners/owners (in the case of inventor profile)**
Nr.	Nume	Total
1	GILEAD SCIENCES, INC.	1

Top-10 foreign co-inventors

**Top-10 foreign co-inventors**
Nr.	Ţara	Nume	Total
1	US	WANG Fang	1
2	US	SHI Bing	1
3	US	YU, Richard, Hung Chiu	1

Top 10 foreign co-applicants

**Top 10 foreign co-applicants**
Nr.	Ţara	Nume	Total
1	US	GILEAD SCIENCES, INC.	1

Top-10 foreign co-owners

**Top-10 foreign co-owners**
Nr.	Ţara	Nume	Total
1	US	GILEAD SCIENCES, INC.	1

Top patents cited by person

**Top patents cited by person**
Nr.	Ţara	Număr	Total
1	US	7390791	1
2	US	7803788	1

The most longeval person patents

**The most longeval person patents**
Nr.	Număr brevet	Solicitant	Inventator	Titular	Titlu	Valabil pînă la	Valabil (ani)
1	4508	GILEAD SCIENCES, INC., US;	LIU, Dazhan, CA; SHI Bing, US; WANG Fang, US; YU, Richard, Hung Chiu, US;	GILEAD SCIENCES, INC., US;	Hemifumarat de tenofovir alafenamidă şi utilizările sale medicale	15.08.2025	13

List of valid patents where the person is the first owner

List of valid patents where the person is the first owner
Nr.	Număr brevet	Valabil pînă la	Valabil (ani)	Statutul	Titlu
1	4508	15.08.2025	13	Brevet valabil	Hemifumarat de tenofovir alafenamidă şi utilizările sale medicale

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