Registered patent agent

Barbara A Schweitzer

USPTO Reg. 68064

Firm

Nestle Purina

Address

1 Checkboard Square - 9T

St. Louis, MO, 63164-0001

US

Phone

Registered as

Registered patent agent

Other attorneys at Nestle Purina

Other patent attorneys in St. Louis, Missouri

Browse all St. Louis patent attorneys →

Frequently asked

Frequently asked about Barbara A Schweitzer

  • Is Barbara A Schweitzer a registered patent attorney?

    Barbara A Schweitzer is a registered patent agent (USPTO Registration Number 68064). Patent agents can prepare and file patent applications but cannot give legal advice on infringement; for legal counsel, look for an attorney.

  • Where is Barbara A Schweitzer located?

    Barbara A Schweitzer's office is in St. Louis, Missouri (63164-0001). Affiliated with Nestle Purina.

  • What firm does Barbara A Schweitzer work at?

    Barbara A Schweitzer is listed as affiliated with Nestle Purina on the USPTO Office of Enrollment and Discipline practitioner roster.

  • How do I contact Barbara A Schweitzer?

    Barbara A Schweitzer's office phone (per the USPTO public roster) is 314-982-4669. 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.

build 4315ed5 · 2026-05-22 17:04 EDT