New York attorney record · Judicial Dept 1
Johan Fredrik Mattsson
Duke University School Of Law alumna, admitted to the New York bar in 2002, registered office in Bethesda, MD. This established record's status, address, and registration history come straight from the NY Office of Court Administration.
- 2002
- Admitted
- 24
- Years in bar
- 4046637
- NY reg #
The record in one line
Johan Fredrik Mattsson has held an active New York bar license for 24 years - admitted in 2002, longer-tenured than 51% of the state's currently-active attorneys.
- 24 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- #183 of 345
- by tenure in Bethesda office peers
- Law school
- Duke University School Of Law
Data updated September 2026
What this profile tells you
Bar status & tenure
Johan Fredrik Mattsson carries New York bar registration 4046637, an established, active practitioner in good standing. Registration is recorded within Judicial Department 1, the appellate division overseeing this attorney's home district.
Practice context & education
Practice address is listed under Lockheed Martin Corporation, located in Bethesda, MD, ZIP 20817. 5 other attorneys share this firm affiliation in the registry. Educational background: Duke University School of Law (3,744 registered alumni).
State context & due diligence
With an established practice on record, Johan Fredrik Mattsson remains inside the New York bar's active cohort - see below for how that share of the register compares.
Experience vs. the active New York bar
Johan Fredrik Mattsson was admitted in 2002, giving 24 years on the New York register.
24 years on the New York bar
Years since admission, all currently-active NY attorneys
24 Top 49% higher than 51% of 290,787 active NY attorneys
Each bar is a band; taller bars hold more active NY attorneys. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source NY Office of Court Administration, Attorney Registration · September 2026
Tenure among Bethesda, MD office peers
Relative to the 345 NY-registered attorneys listing Bethesda, MD, Johan Fredrik Mattsson is longer-tenured than 53% (local rank #183). See the Bethesda attorney directory .
- Local rank
- #183
- City cohort
- 345
- Local percentile
- 53rd
- Admitted
- 2002
Nearest tenure peers in Bethesda
- Erin Brophy Andrews admitted 2002 · 24 yr
- Lisa Michelle Gans admitted 2002 · 24 yr
- Stacey Josephine Hanna admitted 2002 · 24 yr
- Brian Lawrence Levine admitted 2002 · 24 yr
How local rank is computed
Rank uses years since NY-bar admission among non-deceased registry rows that list the same office city and state, a local placement, not a statewide claim. Source: NY Office of Court Administration Attorney Registration · as of September 2026. Derived local rank, not published upstream.
How Johan compares to fellow Duke University School Of Law alumni
Among the 2,805 Duke University School Of Law graduates in the New York register, Johan Fredrik Mattsson is longer-tenured than 77%.
24 years vs. Duke University School Of Law alumni
Years since admission - 2,805 NY-registered alumni of this school
24 Top 23% higher than 77% of 2,805 fellow alumni
Each bar is a band; taller bars hold more fellow alumni. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source NY Office of Court Administration, Attorney Registration · September 2026
Duke University School Of Law's active-bar rate
Of Duke University School Of Law's 3,744 alumni in the New York register, 75.8% currently hold "Currently registered" status, above the statewide average.
The 2002 admission class today
Of the 7,981 attorneys admitted to the New York bar in 2002, 64.4% are still "Currently registered" today, below the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 4046637
- Year Admitted
- 2002 (24 yrs · senior)
- Judicial Department
- 1
- Next Registration
- Jun 2028
Location & Contact
- Company
- Lockheed Martin Corporation
- City
- Bethesda, MD
- ZIP Code
- 20817
- Phone
- (959) 282-9796
Education
Status Distribution Across the New York Bar
Johan Fredrik Mattsson's current status, "Currently registered", places this attorney in the 67.2% of the 432,625-attorney New York register currently marked active.
Full statewide breakdown & source note
Source: NY Office of Court Administration, Attorney Registrations. Status counts reflect the latest reporting cycle. Bar status confirms registration only; it does not imply competence, specialty fit, or freedom from complaints.
Same firm affiliation: Lockheed Martin Corporation
Other NY-registered attorneys who share this firm name on the OCA register (not a geographic peer set).
Near-tenure Duke University School Of Law alumni
Fellow alumni on the NY register whose admission year is closest to 2002 (excluding same-firm colleagues above).
Same admission year (2002), other cities
NY-registered attorneys admitted in 2002 whose listed office city differs from Bethesda, a vintage cohort, not a neighborhood list.
Nationwide attorneys with similar admission year or city registry density
Two non-geo peer axes for Johan Fredrik Mattsson: closest NY bar admission year outside MD, and closest out-of-state office cities by how many NY-registered attorneys they list (~346 here). Distinct from same-firm, fellow-alumni, and same-year other-city strips above.
Similar admission year (~2002)
Counts come from the NY State Office of Court Administration registration extract; peers are not a competence or practice-area ranking.
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Compare attorneys →Before you rely on this record
Johan Fredrik Mattsson's "Currently registered" listing confirms bar standing only, it is a registration fact to verify, not a verdict on quality or competence.
Frequently Asked Questions
Where is Johan Mattsson licensed?
Johan Mattsson is licensed to practice law in New York.
When was Johan Fredrik Mattsson admitted to the bar?
Johan Fredrik Mattsson was admitted to the bar in 2002.
Where did Johan Fredrik Mattsson go to law school?
Johan Fredrik Mattsson attended Duke University School of Law.
What company does Johan Fredrik Mattsson work for?
Johan Fredrik Mattsson is associated with Lockheed Martin Corporation in Bethesda, MD.
Is Johan Fredrik Mattsson in good standing?
Yes, Johan Fredrik Mattsson holds active bar status ("Currently registered").
Cite this page & disclosure
Sourced from the NY Office of Court Administration, informational only, not legal advice. Full disclosure.
Read our methodology - how this data is sourced, computed, and verified.