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Winifred Ellerby-Castellanos

Junior Patent Paralegal
Alexandria, VA, United States

Professional Summary

Detail-driven junior patent paralegal with 3 years supporting USPTO prosecution for utility and design patents across medical devices and software. Manages docketing for 400+ matters, prepares IDS filings and office-action response packages, and keeps attorneys ahead of every statutory deadline. Fluent in Patent Center, Foundation IP, and PCT national-phase workflows.

Employment History

Patent Paralegal (Junior)
Halvorsen & Pike IP LLP · Alexandria, VA
Jun, 2024
Docket 420+ active US and PCT matters in Foundation IP with zero missed statutory or bar-date deadlines. Prepare and file 60+ Information Disclosure Statements per quarter via USPTO Patent Center, including SB/08 forms and reference uploads. Assemble office-action response packages, claim charts, and fee worksheets for 6 prosecution attorneys. Coordinate PCT national-phase entries in 14 jurisdictions with foreign associates, tracking 30/31-month deadlines and translation requirements.
Patent Docketing Assistant
Northfield Medical Technologies (in-house legal) · Arlington, VA
Aug, 2022 · May, 2024
Maintained the maintenance-fee calendar for a 1,100-patent portfolio, saving $38K in late-surcharge exposure. Ran prior-art searches on Espacenet and Google Patents for 40+ invention disclosures to support filing decisions. Built an assignment-recordation tracker that cut recordation lag from 21 to 6 days. Reconciled Patent Center status data against the docket monthly, correcting 120+ discrepancies.
Legal Intern
Potomac Inventors' Clinic · Washington, DC
Jan, 2022 · May, 2022
Drafted provisional application cover sheets and micro-entity certifications for 25 independent inventors. Organized inventor intake files and ran conflict checks for every new clinic matter. Prepared filing checklists and USPTO fee calculations reviewed by supervising attorneys.

Education

Paralegal Certificate (ABA-approved)
Northern Virginia Community College · Alexandria, VA
Aug, 2021 · May, 2022
ABA-approved program; coursework in intellectual property law, legal research, and litigation support.
B.A. English & Biology
George Mason University · Fairfax, VA
Aug, 2017 · May, 2021
Double major combining technical science writing with molecular biology lab coursework.

Skills

USPTO Patent Center
Foundation IP docketing
IDS preparation
PCT national phase
Prior-art searching
Office-action response packages
Assignment recordation
Maintenance-fee management
MPEP familiarity
Microsoft Word & Excel

Courses

NALA Certified Paralegal (CP)
National Association of Legal Assistants
Mar, 2023
USPTO Patent Center training
United States Patent and Trademark Office
Jun, 2022