Registered patent agent
Chase W. Hemmelgarn
Firm
Calfee, Halter & Griswold LLP
Address
41 South High Street
Suite 1200
Columbus, OH, 43215
US
Phone
Registered as
Registered patent agent
Other attorneys at Calfee, Halter & Griswold LLP
- Andrew W. AlexanderUSPTO Reg. 80055 · Cleveland, OH
- Todd E. BehrensUSPTO Reg. 59170 · Cleveland, OH
- Daniel W. BowenUSPTO Reg. 76444 · Columbus, OH
- Ryan W FalkUSPTO Reg. 54090 · Cleveland, OH
- Joshua A FriedmanUSPTO Reg. 76079 · Cleveland, OH
- David J GroverUSPTO Reg. 58930 · Cleveland, OH
- Tracy Scott JohnsonUSPTO Reg. 56384 · Cleveland, OH
- Lauren Christine KulikUSPTO Reg. 75502 · Cincinnati, OH
Other patent attorneys in Columbus, Ohio
- Jin Soo AhnUSPTO Reg. 77912
- Wesly A AligVertiv, Inc.
- Kraig K AndersonBenesch, Friedlander, Coplan & Aronoff LLP
- Thomas S BakerUSPTO Reg. 25662
- Erik A BarboneUSPTO Reg. 64931
- Matthew R BellUSPTO Reg. 69664
- Dennis C BelliDennis C Belli, Attorney at Law
- Adam A BennettAdam Bennett
Frequently asked
Frequently asked about Chase W. Hemmelgarn
Is Chase W. Hemmelgarn a registered patent attorney?
Chase W. Hemmelgarn is a registered patent agent (USPTO Registration Number 79874). Patent agents can prepare and file patent applications but cannot give legal advice on infringement; for legal counsel, look for an attorney.
Where is Chase W. Hemmelgarn located?
Chase W. Hemmelgarn's office is in Columbus, Ohio (43215). Affiliated with Calfee, Halter & Griswold LLP.
What firm does Chase W. Hemmelgarn work at?
Chase W. Hemmelgarn is listed as affiliated with Calfee, Halter & Griswold LLP on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Chase W. Hemmelgarn?
Chase W. Hemmelgarn's office phone (per the USPTO public roster) is 614-621-7798. 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.