Registered patent attorney
Petrina Sze-Wai Hsi
Firm
Amgen, Inc.
Address
One Amgen Center Drive
Department 4300, MSC 27-4-a
Thousand Oaks, CA, 91320
US
Phone
Registered as
Registered patent attorney
Other attorneys at Amgen, Inc.
- Osama Y BadawiUSPTO Reg. 66379 · Tampa, FL
- Matthew O DuffeyUSPTO Reg. 73865 · Chappaqua, NY
- Nancy Jean GettelUSPTO Reg. 57481 · Thousand Oaks, CA
- Melissa Elizabeth KarabinisUSPTO Reg. 51860 · South San Francisco, CA
- Peter KorakasUSPTO Reg. 66513 · Cambridge, MA
- Olga MekhovichUSPTO Reg. 63386 · South San Francisco, CA
- David B RanUSPTO Reg. 38589 · Seattle, WA
- G. Prabhakar ReddyUSPTO Reg. 47890 · Thousand Oaks, CA
Other patent attorneys in Thousand Oaks, California
- Julia E AbersUSPTO Reg. 31222
- Eric M AgovinoAmgan Inc.
- Markus BergauerAmgen Inc.
- Kimberly L BerkowskiAmgen Inc.
- Robert J BerryUSPTO Reg. 65424
- Alla BrukmanAmgen Inc.
- Joseph W BulockJoseph W Bulock LLC
- Ngam Fung David ChanInstil Bio Inc.
Frequently asked
Frequently asked about Petrina Sze-Wai Hsi
Is Petrina Sze-Wai Hsi a registered patent attorney?
Yes. Petrina Sze-Wai Hsi is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 38496). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is Petrina Sze-Wai Hsi located?
Petrina Sze-Wai Hsi's office is in Thousand Oaks, California (91320). Affiliated with Amgen, Inc..
What firm does Petrina Sze-Wai Hsi work at?
Petrina Sze-Wai Hsi is listed as affiliated with Amgen, Inc. on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Petrina Sze-Wai Hsi?
Petrina Sze-Wai Hsi's office phone (per the USPTO public roster) is 805-447-8631. 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.