Registered patent attorney
Robert H Chang
Firm
Omikron IP Law Group
Address
16325 Boones Ferry Road, Suite 105
Lake Oswego, OR, 97035
US
Phone
Registered as
Registered patent attorney
Other patent attorneys in Lake Oswego, Oregon
- Kathleen A CushingUSPTO Reg. 41693
- Sandon M DuncanUSPTO Reg. 64141
- Alan M FlumStone Creek Services LLC
- Elmer W GalbiUSPTO Reg. 19761
- Scott Evan GilbertGreen, Howard & Mughal LLP
- Francis I GrayUSPTO Reg. 27788
- Francine H GrayUSPTO Reg. 31107
- Blayne D GreenEssential Patents Group, LLP
Frequently asked
Frequently asked about Robert H Chang
Is Robert H Chang a registered patent attorney?
Yes. Robert H Chang is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 48765). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is Robert H Chang located?
Robert H Chang's office is in Lake Oswego, Oregon (97035). Affiliated with Omikron IP Law Group.
What firm does Robert H Chang work at?
Robert H Chang is listed as affiliated with Omikron IP Law Group on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Robert H Chang?
Robert H Chang's office phone (per the USPTO public roster) is 503-697-0757. 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.