Registered patent attorney
Donald R Ladwig
Firm
Engineering Software Research and Development, Inc.
Address
111 West Port Plaza
Suite 825
St. Louis, MO, 63146
US
Phone
Registered as
Registered patent attorney
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Frequently asked
Frequently asked about Donald R Ladwig
Is Donald R Ladwig a registered patent attorney?
Yes. Donald R Ladwig is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 61777). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is Donald R Ladwig located?
Donald R Ladwig's office is in St. Louis, Missouri (63146). Affiliated with Engineering Software Research and Development, Inc..
What firm does Donald R Ladwig work at?
Donald R Ladwig is listed as affiliated with Engineering Software Research and Development, Inc. on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Donald R Ladwig?
Donald R Ladwig's office phone (per the USPTO public roster) is 314-744-5021 X17. 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.