Greenblum & Bernstein

I'll research this firm before drafting.

Now let me verify the tracked cases and the named attorneys.

Let me verify Paul Ainsworth's role and the firm's appearance history.

Greenblum & Bernstein, P.L.C. — Patent Litigation Practice Summary

Firm overview. Greenblum & Bernstein, P.L.C. ("G&B") is a Reston, Virginia intellectual property boutique founded in 1978 and headquartered at 1950 Roland Clarke Place, in the Dulles high-technology corridor roughly 20 minutes from the USPTO. It is a single-office, IP-only shop rather than a BigLaw or AmLaw-ranked firm: the U.S. News law-firm directory lists one U.S. office, 36 lawyers and 14 partners, and the firm's own JIPA profile reports a total staff of "just under 100" with 36 patent attorneys. Third-party business databases (Salary.com, ZoomInfo, LeadIQ) variously estimate 50–200 employees and revenues in the $10–50M range, but these are aggregator estimates, not audited figures, and should be treated as indicative only. I found no AmLaw 200/100 ranking or Chambers USA band for the firm; its most reliable third-party recognition is IAM Strategy 300, which ranks founding counsel Bruce Bernstein in defensive patent aggregation and IP management. Historically, a very large share of the practice has been prosecution and portfolio work for Japanese and other Asian corporate clients.

IP litigation specialty. G&B's litigation is an outgrowth of a prosecution-heavy platform, and the technology mix reflects it. The firm's own practice description cites litigation experience in telecommunications, pharmaceuticals, medical imaging devices, and mechanical/consumer products, alongside trademark and trade secret matters, and states its prosecution docket is roughly evenly split across electrical/software, chemical/bio/pharma, and mechanical arts. Two distinct litigation lanes are visible: (1) memory and semiconductor-related patent assertions — the tracked Longitude matter centers on flash-memory/NAND patents originating from the SanDisk portfolio (U.S. Patent Nos. 6,763,424, 7,970,987, 8,316,177 and related patents on partial-block programming, data correction and wear leveling); and (2) Hatch-Waxman / ANDA litigation for generic drug companies, with the firm's site naming Otezla, Trintellix, Eliquis, Abilify, Tradjenta/Jentadueto, and Viibryd among products it has assisted generic clients with. The firm also handles TTAB oppositions and Federal Circuit appeals from both district court and USPTO decisions.

Side preference. G&B's tracked litigation record is exclusively defensive: 0 plaintiff-side, 2 defendant-side appearances, with lead counsel roles in both (plus one counsel-level role). That aligns with the firm's structural posture — an IP boutique whose core clients are operating companies (frequently foreign multinationals) and generic pharmaceutical manufacturers defending against brand-name suits. The firm's prosecution and licensing practice necessarily sits on the other side of that line, and its PTAB work has included representation of patent owners — notably Rembrandt Wireless Technologies, L.P., a well-known licensing entity, as patent owner in AIA proceedings. So the accurate characterization is: defendant/respondent-leaning in district court, with the ability to appear on either side in PTAB and TTAB contested matters.

Notable matters. The most prominent tracked case by name is Longitude Licensing Limited et al. v. Apple Inc. et al., with Paul F. Ainsworth listed as lead counsel for a defendant. The best-documented public proceeding under that caption is Longitude's 2014 N.D. Cal. action against Apple over thirteen flash-memory patents licensed from SanDisk; that case produced a March 2015 order (Laporte, J.) dismissing Longitude's willful-infringement allegations without prejudice and a November 2015 order granting Apple's motion to compel production of non-privileged licensing-analysis reports. Note a sourcing caveat: the publicly reported counsel of record in the 2014 N.D. Cal. action were DLA Piper and Bunsow De Mory, not G&B, so the tracked G&B appearance may relate to a different Longitude docket (Longitude has also asserted related patents against Apple, Broadcom and Qualcomm in W.D. Tex.) or to a defense-side engagement not reflected in the published docket excerpts I could retrieve. I could not independently verify a G&B verdict, judgment or published settlement in this matter, and the second tracked case is untitled in the data provided. Separately, public dockets show the firm's litigation chair Michael J. Fink representing biomodal Limited in patent infringement actions against New England Biolabs (D. Mass., 2024) and Watchmaker Genomics (D. Colo., 2025) — plaintiff-side assertions outside the tracked two-case set — and defending a DTSA claim in RxWellness (E.D. Va., 2025).

PTAB/IPR practice. This is a genuine institutional strength rather than an adjunct. The firm reports that more than half its attorneys have USPTO experience and that its roster includes a former Chief Judge and a former Vice Chief Judge of the PTAB (the JIPA profile also cites a former Administrative Patent Law Judge and a former Chief Judge/Vice Chief Judge of the Board of Appeals), and it maintains a discrete "Post-Grant Patent Office Proceedings" group. Public PTAB filings confirm active practice: Jill M. Browning (lead), Michael J. Fink and Neil F. Greenblum filed patent-owner papers and mandatory notices on behalf of Rembrandt Wireless Technologies, L.P. (e.g., IPR2020-00509 and related proceedings), and the firm appeared as back-up counsel in earlier AIA proceedings dating to 2015. I did not find a public report quantifying the firm's annual IPR/PGR petition volume, so any figure on scale would be unsupported; the verifiable evidence is sustained patent-owner-side participation in contested AIA proceedings rather than a high-volume petitioner practice.

Key practitioners. Publicly documented litigation/practice leaders include Jill M. Browning (managing partner; co-chair of litigation; head of the trademark department; joined 1996, first woman partner in 2001; former E.D. Va. law clerk), Neil F. Greenblum (founding/co-managing partner, registered patent attorney), Michael J. Fink (litigation and post-grant/PTAB matters; long-time author of the firm's litigation newsletter), and P. Branko Pejic (litigation and client counseling). Bruce Bernstein, a founder, remains founding counsel and is the firm's most externally ranked figure via IAM Strategy 300, though his current focus is IP strategy/licensing rather than litigation. The docket-derived data provided lists Jonathan Robert Miller, Paul F. Ainsworth and Brian C. Greenwald as attorneys of record in the two tracked matters; I was unable to verify these three against the firm's current published attorney roster or any industry ranking, so their practice-leadership status should be treated as unconfirmed.