Registered patent attorney

David Israel Klein

USPTO Reg. 33253

Address

3458 Ellicott Center Drive

Suite 101

Ellicott City, MD, 21043

US

Phone

Registered as

Registered patent attorney

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Frequently asked

Frequently asked about David Israel Klein

  • Is David Israel Klein a registered patent attorney?

    Yes. David Israel Klein is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 33253). Registration is verified against the USPTO Office of Enrollment and Discipline roster.

  • Where is David Israel Klein located?

    David Israel Klein's office is in Ellicott City, Maryland (21043).

  • How do I contact David Israel Klein?

    David Israel Klein's office phone (per the USPTO public roster) is 410-465-6678. 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.

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