Registered patent attorney
Yijan E Chang
Firm
Oruka Therapeutics
Address
855 Oak Grove Ave.
Menlo Park, CA, 94025
US
Phone
Registered as
Registered patent attorney
Other patent attorneys in Menlo Park, California
- Charles A AdelsheimUSPTO Reg. 63397
- David L AlbertiFeinberg Day Alberti & Thompson, LLP
- Elizabeth A AlcamoAvalanche Biotechnologies, Inc.
- Jason S AngellOrrick Herrington and Sutcliffe LLP
- William L AnthonyOrrick Herrington and Sutcliffe LLP
- Peter C AnthonyUSPTO Reg. 68845
- Randolph T AppleKilpatrick Townsend & Stockton
- Deana A ArnoldPacific Biosciences of California, Inc
Frequently asked
Frequently asked about Yijan E Chang
Is Yijan E Chang a registered patent attorney?
Yes. Yijan E Chang is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 54698). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is Yijan E Chang located?
Yijan E Chang's office is in Menlo Park, California (94025). Affiliated with Oruka Therapeutics.
What firm does Yijan E Chang work at?
Yijan E Chang is listed as affiliated with Oruka Therapeutics on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Yijan E Chang?
Yijan E Chang's office phone (per the USPTO public roster) is 650-706-7509. Verify availability and intake details directly with the firm before sending privileged materials.
Should I prepare anything before contacting a patent attorney?
Yes — most patent attorneys quote based on a brief. Persoona's intellectual property module generates a prior-art analysis, defensibility scorecard, and a draft USPTO filing package so you arrive with a brief, not a blank slate. Free to run.
Profile sourced from the USPTO OEDCI Practitioner Roster. Persoona did not provide, edit, or curate this data — every field is pulled directly from the public roster.