Aspex Eyewear, Inc. et al. v. Zenni Optical, LLC

I'll research this case thoroughly before drafting the overview.

Let me dig deeper into the parties, the parallel case, and the patents.

Good progress. Now let me verify the procedural details, the companion case, and any PTAB/IPR linkage.

Case Overview and Background — Aspex Eyewear, Inc. v. Zenni Optical, LLC

The parties. This is an operating-company enforcement case, not a classic NPE/PAE suit. Plaintiffs are Contour Optik, Inc., a Taiwanese eyewear R&D/manufacturing company (est. 1979, Chiayi, Taiwan) that is the record owner/assignee of the three asserted patents and is known for magnetically attached front-clip sunglasses, and Aspex Eyewear, Inc., its U.S. exclusive licensee with the right to sue. Aspex is a Delaware corporation with its U.S. principal place of business at Pembroke Park, Florida (Broward County); founded in Montreal in 1965, it is a family-owned global eyewear designer/distributor whose signature EasyClip line commercialized magnetic clip-on eyewear (First Amended Complaint, 09-61468-CIV-ZLOCH/ROSENBAUM; Aspex "About Us"). Aspex's status as an exclusive licensee was itself heavily litigated in parallel cases — it was found to lack standing in E'Lite Optik (127 F. App'x 493 (Fed. Cir. 2005)), was found to have a triable oral/implied license in Altair (361 F. Supp. 2d 210 (S.D.N.Y. 2005)), and the Contour–Chic agreement was held a license, not an assignment, in Miracle Optics (434 F.3d 1336 (Fed. Cir. 2006)) — a licensing structure (patent owner + exclusive sublicensee enforcing) that has some NPE-adjacent traits even though both parties make product. Defendant Zenni Optical, LLC was founded in 2003 in Northern California (Novato/San Rafael) by Tibor Laczay and Julia Chen as one of the first online-only prescription-eyewear retailers; at the time of suit it was a young, vertically integrated direct-to-consumer upstart selling glasses for as little as $6.95 (Zenni "About Us"; Forbes, 2018). Zenni was represented by Duane Morris (Guy Chambers, J. Rodman Steele, Harvey Gurland, Siegfried Ruppert, Kristina Caggiano, Warren Zaffuto, Gregory Lefkowitz, Karen Kline), with corporate counsel Philip Green (Green & Green, San Rafael) (IP Today, Apr. 24, 2013).

Accused product and asserted patents. Aspex alleged that Zenni infringed by offering for sale through zennioptical.com rimless magnetic clip-on sunglasses/sunshades — auxiliary lenses held to the primary frame by magnets at the bridge (First Amended Complaint). The three patents are all directed to magnetic clip-on eyewear in which magnets secure the bridge portions: U.S. 5,737,054, "Auxiliary Lenses for Eyeglasses" (issued Apr. 7, 1998) — a clip-on auxiliary lens magnetically attached to the primary frame; U.S. 6,012,811, "Eyeglass Frames with Magnets at Bridges for Attachment" (issued Jan. 11, 2000) — primary frames with magnets at the bridge for attaching an auxiliary frame; and U.S. 6,092,896, "Eye-wear with magnets" (issued July 25, 2000) — eyewear with magnetic attachment structure (Finnegan, Last Month at the Federal Circuit, May 2013). Procedurally, Aspex and Contour filed on September 17, 2009 in the U.S. District Court for the Southern District of Florida, Fort Lauderdale Division (Broward County). The Zenni action bears No. 0:09-cv-61468 and was assigned to Judge William J. Zloch (Magistrate Judge Robin S. Rosenbaum) (Justia docket; complaint caption), and Duane Morris's case note confirms 0:09-cv-61468 as the Zenni matter. A metadata caveat: public dockets list companion 0:09-cv-61467 as Aspex Eyewear v. Great Eyeglasses, LLC before Judge Ursula Ungaro — filed the same day against a different online retailer (Justia docket) — so 61467 does not appear on the public docket as a Zenni case, though the two 2009 complaints were plainly part of one campaign over the same three patents. The Justia docket title for 61468 lists the defendant as "Levente Tibor Laczay" (Zenni's founder/CEO), while the operative First Amended Complaint names Zenni Optical, LLC; I could not verify the original-complaint party history, so treat that point as unresolved. Venue in S.D. Fla. tracked Aspex's own U.S. operations in Broward County, making it a home-district filing; I did not find a sourced statement characterizing the division's docket speed, so I won't speculate on "rocket docket" motives.

Posture and why the case matters. Judge Zloch granted Zenni summary judgment on collateral estoppel in 2012 (the "Zenni I" and "Zenni II" orders referenced in the appellate opinion), holding that Aspex's prior loss against Altair Eyewear over materially identical rimless magnetic clip-ons settled the infringement question and barred the Zenni suit (Mandour & Associates summary). The Federal Circuit affirmed on April 19, 2013, 713 F.3d 1377 (No. 2012-1318) — panel of Newman (author), Prost, and Reyna — holding that because every claim asserted against Zenni contained the same dispositive "retaining mechanism" limitation construed in Altair to require rims, and because the Zenni and Altair products were materially indistinguishable, "the assertion of different claims in a subsequent suit does not create a new 'issue' to defeat preclusion" (Finnegan; Lexology, Apr. 24, 2013). This is the case's significance: it is a clean, frequently cited application of offensive, non-mutual collateral estoppel to shut down a serial "sue-every-retailer" patent campaign — one loss to one competitor estopped the patentee against all downstream sellers of the same product. The decision also had practical claim-scope fallout for magnetic eyewear: "retaining mechanism" in the '811 and '896 patents requires rims or equivalents (so rimless magnetic clip-ons do not infringe), and '054 claim 1 — the only claim asserted — was held invalid for obviousness on remand in the Altair line, affirmed at 484 F. App'x 565 (Fed. Cir. 2012) (CourtListener opinion). The industry impact was concrete: Zenni's CEO framed the win as preserving its ability to "continue to sell our line of magnetic snap-on sunshades" without interruption, and the ruling came as low-cost online eyewear was beginning to disrupt the traditional retail optical market (IP Today). It also fit a long-running Aspex/Contour enforcement pattern against magnetic-eyewear competitors, including Altair, Marchon Eyewear (672 F.3d 1335 (Fed. Cir. 2012)), Miracle Optics, and E'Lite Optik. On IPR linkage: I could not find any PTAB IPR/PGR proceedings involving these three patents. That is consistent with timing — the IPR regime began in September 2012, after Judge Zloch's summary judgment, by which point these mid-1990s-era patents were near expiry and already judicially resolved — but I state the absence as a negative finding from my searches rather than a documented fact.

Unsourced or single-source points, flagged: (1) The cert petition — one secondary source states Aspex sought certiorari "[i]n March" and was denied (Mandour); I was unable to confirm the filing date, docket number, or denial date from a primary source, so treat it as unverified. (2) The relationship between dockets 61467 and 61468 (whether any consolidation occurred) is not established in the sources I found. (3) The 2012 summary-judgment order dates and the specific "Zenni I"/"Zenni II" entry numbers were not retrieved; the Federal Circuit opinion refers to them by those shorthand names but I have not cited docket entries for them.

I'll research this case thoroughly using web searches.

Let me dig deeper into the docket, district court opinions, and any PTAB/reexamination proceedings.

Let me look for the actual docket, the district court's two opinions (Zenni I and Zenni II), and any PTAB/reexamination activity on these patents.

Key Legal Developments & Outcome — Aspex Eyewear, Inc. et al. v. Zenni Optical, LLC

Note on the case numbers: The metadata lists both 0:09‑cv‑61467 and 0:09‑cv‑61468. PACER/CourtListener records show these are two companion suits filed the same day: 0:09‑cv‑61467 is Aspex Eyewear, Inc. et al. v. Great Eyeglasses, LLC (Judge Ursula Ungaro / Mag. Andrea Simonton), while 0:09‑cv‑61468 is Aspex Eyewear, Inc. et al. v. Zenni Optical, LLC, captioned No. 09‑61468‑CIV‑ZLOCH/ROSENBAUM (Judge William J. Zloch / Mag. Robin S. Rosenbaum). The substantive appellate holding below arises from the Zenni case (09‑61468). I flag this because the two are frequently conflated.

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I. Pre‑suit backdrop: the Altair litigation (the engine of preclusion)

The dispositive events in this case occurred in an earlier, separate case, so they must be laid out first.

• 2002 — Aspex/Contour sued Altair Eyewear, Inc. for infringement of the same three patents (U.S. 5,737,054; 6,012,811; 6,092,896) — magnetic bridge‑mounted clip‑on eyewear — in the S.D.N.Y. before Judge Stephen C. Robinson.
• 2005‑09‑09 (Markman) — The Altair court construed "retaining mechanism" in the '811/'896 patents as a means‑plus‑function limitation under §112 ¶6 and, because rims were the only disclosed structure, limited it to "a structure that keeps the lenses in place using rims." Accused products were rimless (lenses held by pins/screws), so the court found no literal infringement or infringement by equivalents.
• 2007‑04‑13 — Judgment entered for Altair (amended 2007‑05‑11 to dismiss Altair's counterclaims without prejudice).
• 2008 — Fed. Cir. affirmed on the '811/'896 (no infringement; "retaining mechanism" requires rims or equivalents) but reversed as to the '054 patent, holding that "frame" in the '054 patent is not limited to one with rims — Aspex Eyewear, Inc. v. Altair Eyewear, Inc., 288 F. App'x 694 (Fed. Cir. 2008) ("Altair III").
• On remand / 2012 — With "frame" broadened, the district court held the sole asserted '054 claim (claim 1) invalid for obviousness; the Federal Circuit affirmed, Aspex Eyewear, Inc. v. Altair Eyewear, Inc., 484 F. App'x 565 (Fed. Cir. 2012).
• (Separately, Aspex's standing as exclusive licensee was litigated across Aspex v. E'Lite Optik, 127 F. App'x 493 (Fed. Cir. 2005), and the Altair standing cross‑appeal; the Federal Circuit ultimately held an implied/oral exclusive license can suffice for standing when the patentee is joined. Contour, the record owner, was a co‑plaintiff in the Zenni suit.)

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II. Filing & initial pleadings (2009)

• 2009‑09‑17 — Contour Optik, Inc. (Taiwan; record owner) and Aspex Eyewear, Inc. (Delaware; exclusive licensee, Pembroke Park, FL) filed the Zenni complaint, 09‑61468‑CIV‑ZLOCH/ROSENBAUM. Counts I–III alleged infringement of the '054, '811 and '896 patents via Zenni's magnetic clip‑on products sold through zennioptical.com. Plaintiffs alleged willfulness (pre‑suit notice under §287) and sought a permanent injunction and damages.
• A First Amended Complaint superseded the original. (The Great Eyeglasses companion, 09‑61467, was filed the same day against a different online retailer.)
• Zenni's defense: non‑infringement and, critically, that the action was barred by collateral estoppel/issue preclusion arising from the Altair judgments. Zenni's team was from Duane Morris LLP (Guy Chambers, J. Rodman Steele, Harvey Gurland, Siegfried Ruppert, Kristina Caggiano, Warren Zaffuto, Gregory Lefkowitz, Karen Lally Kline), with corporate counsel Philip Green (Green & Green). (I could not independently verify the exact filing date or content of Zenni's answer/counterclaims, or any counterclaim disposition, from the sources retrieved — treat that detail as unconfirmed.)

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III. Pre‑trial motions

• No verified motion to dismiss, transfer, or stay pending IPR appears in the materials I retrieved. Motions to dismiss/transfer, if filed, are not documented in the sources available to me; I will not speculate on their existence or outcome.
• The substantive pre‑trial vehicle was Zenni's motion for summary judgment of non‑infringement / no case grounded in collateral estoppel. The Federal Circuit opinion refers to two district‑court rulings — "Zenni I" (at p. 21, finding the accused Zenni rimless products materially indistinguishable from the Altair products) and "Zenni II" (at pp. 2–3, holding collateral estoppel bars the suit). I do not have the reporter citations or exact dates for Zenni I and Zenni II; based on the Federal Circuit opinion, both issued in 2012.

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IV. Claim construction (Markman)

• The Zenni case did not reach a merits Markman ruling on the new terms Aspex wanted construed. Aspex argued on appeal that infringement turned on terms "primary frame," "auxiliary frame," "first frame," and "second frame," which (it contended) required construction and had not been construed in Altair.
• The operative constructions were inherited from Altair: "retaining mechanism" = rims or their equivalents ('811/'896). The Federal Circuit held that because every claim asserted against Zenni contained the same "retaining mechanism" limitation, the selection of additional claims and additional terms for construction did not create a new issue to defeat preclusion.

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V. Discovery milestones

• I found no well‑sourced, specific discovery events (e.g., claim‑chart exchanges, expert reports, depositions) for 09‑61468. The case proceeded to a summary‑judgment posture (implying fact discovery closed), but I cannot responsibly cite particular discovery dates or docket entries. Treat this section as not confirmed.

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VI. Summary judgment and final district judgment (2012)

• The district court (Judge Zloch) granted Zenni summary judgment on collateral estoppel in 2012, applying the Eleventh Circuit's four‑part Christo v. Padgett, 223 F.3d 1324, 1339 (11th Cir. 2000), test:
  1. identical issue;
  2. actually litigated;
  3. critical and necessary to the prior judgment;
  4. full and fair opportunity to litigate.
• The court found the Zenni rimless eyewear materially indistinguishable from Altair's rimless eyewear ("Plaintiffs have failed to identify … any material difference"), so the Altair rulings settled that such products cannot infringe the '811/'896 patents, and the sole asserted '054 claim had been held invalid for obviousness.
• Practical effect: complete defense judgment for Zenni.

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VII. Appeal — Federal Circuit (2013)

• 2013‑04‑19 — Aspex Eyewear, Inc. v. Zenni Optical LLC, No. 2012‑1318, 713 F.3d 1377 (Fed. Cir. 2013) (Newman, author; Prost and Reyna, JJ.).
• Holding: Affirmed. Framing the issue as "infringement by magnetic rimless clip‑on eyewear" under the final construction of "retaining mechanism," the court held Aspex had a full and fair opportunity to litigate in Altair; "[i]t is the issues litigated, not the specific claims around which the issues were framed, that is determinative" (quoting Westwood Chem., Inc. v. United States, 525 F.2d 1367, 1372 (Ct. Cl. 1975)). Because the Zenni and Altair products were materially identical and every asserted claim shared the dispositive limitation, asserting new claims/new terms did not defeat preclusion. The court also applied Parklane Hosiery Co. v. Shore, 439 U.S. 322 (1979), and Nystrom v. Trex Co., 580 F.3d 1281 (Fed. Cir. 2009).

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VIII. Certiorari and finality

• Aspex sought certiorari; the petition was denied. Several secondary sources state the petition was filed/denied in March (year not reliably stated in the sources I retrieved). The date and docket number of the cert petition could not be verified — treat the "March" reference as unconfirmed. With denial, the Federal Circuit's 2013‑04‑19 affirmance became the final disposition: judgment for Zenni Optical, no infringement of the '811/'896 patents and invalidity of the asserted '054 claim.

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IX. Parallel PTAB IPR/PGR proceedings

• None found. IPR/PGR practice began 2012‑09‑16, near the end of this litigation, and I identified no IPR, PGR, or CBM proceeding involving U.S. 5,737,054; 6,012,811; or 6,092,896. The patents issued 1998–2000 and the disputes (Altair, E'Lite, Revolution/Marchon, Zenni, Great Eyeglasses) were a district‑court/§282‑invalidity story, not an AIA‑trial story.
• Caveat: I did find references to ex parte reexamination in the related Aspex litigation (amended claim 23 / new claim 35 emerging from reexamination of the '545 patent in Aspex v. Revolution/Marchon), but not for the three patents asserted here. Any reexamination history on the '054/'811/'896 patents is unverified by the sources I retrieved.

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X. Bottom line

The Aspex/Contour–Zenni litigation was won by Zenni at summary judgment (2012) and affirmed by the Federal Circuit on 2013‑04‑19 (713 F.3d 1377), with certiorari denied. The decisive development was not a merits ruling in the Zenni case itself but the preclusive effect of the Altair judgments ('811/'896 not infringed; '054 claim 1 invalid), applied to materially identical products. Aspex/Contour's "new claims, new terms" theory failed — issue preclusion turns on the issues litigated, not on claim numbering.

Items I could not verify (stated transparently)

• Exact answer, counterclaims, and any MTD/transfer/stay rulings and dates in 09‑61468.
• Docket entry numbers and reporter citations/dates for the district court's "Zenni I" (2012) and "Zenni II" (2012) opinions.
• Specific discovery milestones.
• Post‑trial/fee motions (none indicated — the case ended at SJ).
• Date/docket of the cert petition (only "March," year unconfirmed).
• Any IPR/PGR/reexamination on the three asserted patents (none found).

If you want, I can attempt to pull the RECAP docket for 0:09‑cv‑61468 to fill in the missing docket‑entry specifics and confirm the Zenni I/Zenni II citations and the cert petition details.

I'll research the counsel of record for the plaintiffs in this case.

Let me dig into the docket and specific filings.

Let me examine the docket records and the Federal Circuit appeal filings.

Plaintiffs' counsel of record — Aspex Eyewear, Inc. & Contour Optik, Inc. v. Zenni Optical, LLC

Bottom line: Only one plaintiff-side attorney is documented on the face of the filings I could retrieve — Arie Mrejen of Mrejen Blinderman P.L. (Fort Lauderdale, FL), who signed the First Amended Complaint as "Counsel for Aspex Eyewear, Inc., and Contour Optik, Inc." I could not confirm any additional plaintiff-side appearances (co-counsel, local counsel, or appellate counsel), and I found no indication that plaintiff-side filings in these dockets were sealed.

Documented counsel

Important disambiguation (do not misattribute)

• Gregory M. Lefkowitz and the Duane Morris LLP team are defense counsel for Zenni Optical — not plaintiffs. Duane Morris's own attorney bio advertises the Aspex Eyewear Inc. v. Zenni Optical, LLC, No. 0:09-cv-61468 case as a defense win ("obtained summary judgment decision barring patent infringement claims on grounds of collateral estoppel"). A keyword search of that bio can easily be mistaken for a plaintiff-side entry. The Zenni defense team, per an IPToday report on the April 24, 2013 Federal Circuit affirmance, consisted of Duane Morris partners Guy Chambers (San Francisco), J. Rodman Steele (Boca Raton), and Harvey Gurland (Miami); special counsel Siegfried Ruppert, Ph.D. (San Francisco); associates Kristina Caggiano (D.C.), Warren Zaffuto (Miami), Greg Lefkowitz and Karen Kline (Boca Raton); with Zenni corporate counsel Philip Green of Green & Green (San Rafael, CA) coordinating. (Source: IPToday, Apr. 24, 2013; Duane Morris attorney profile.)

Sourcing and gaps — stated explicitly

• Primary support for Mrejen: the caption block and signature line of the First Amended Complaint in Case No. 09-61468-CIV-ZLOCH/ROSENBAUM, which identifies "By: Arie Mrejen, Esq., Florida Bar No. 907210 … Mrejen Blinderman P.L. … Counsel for Aspex Eyewear, Inc., and Contour Optik, Inc." (document hosted at RPX Insight litigation documents, doc. 2376367). Corroborated by UniCourt's docket summary for No. 0:09-cv-61467, which lists "Plaintiff Attorney: Arie Mrejen."
• Docket-number discrepancy worth flagging: the case metadata here assigns both 0:09-cv-61467 and 0:09-cv-61468 to the Zenni matter. Public aggregators caption 0:09-cv-61467 as Aspex Eyewear, Inc. et al v. Great Eyeglasses, LLC (filed 09/17/2009), with 0:09-cv-61468 as the Zenni case (judge: Zloch; the Federal Circuit opinion cites "No. 09-cv-61468 (S.D. Fla. Mar. 21, 2012), ECF No. 195 (Zenni I) (report and recommendation)" and "Mar. 30, 2012, ECF No. 206 (Zenni II)"). I am treating the two numbers as companion Aspex filings from the same September 2009 filing wave, but I could not retrieve the actual PACER docket sheets to confirm, and I am not asserting that every counsel on one docket appeared on the other.
• Not verified: the identity of plaintiffs' appellate counsel on Fed. Cir. No. 2012-1318. The reported opinion (713 F.3d 1377 (Fed. Cir. 2013), Judges Newman (author), Prost, Reyna) and the secondary coverage I found (Finnegan's Last Month at the Federal Circuit, May 2013; Lexology; FindLaw) do not name appellant's counsel, and I could not pull the Federal Circuit briefs.
• Not verified / deliberately excluded: a Patexia aggregator page for Aspex Eyewear, Inc. et al v. Laczay lists Mrejen alongside several Greenberg Traurig attorneys (e.g., Paul Jonathan Brown, Mary-Olga Lovett) and other names, while also listing Zenni Optical, Inc. as a party. That is a different docket, the party-attorney mapping is ambiguous in the aggregator listing, and I could not confirm which side those Greenberg Traurig attorneys represented. I have therefore not listed any of them as plaintiff's counsel in this case. Any attribution to the plaintiff side would be speculation.
• No sealed filings were identified in this docket, but I was not able to inspect the full PACER docket, so a fuller counsel list (pro hac vice admissions, notices of appearance, withdrawal notices) may exist.

I'll research the defense-side counsel of record, building on the Duane Morris information already in the case file.

Let me try to retrieve the actual docket entries and any pro hac vice filings.

Let me verify the individual defense attorneys' backgrounds and look for the docket-level appearance records.

Defendant's counsel of record — Aspex Eyewear, Inc. v. Zenni Optical, LLC

Bottom line: The defense was handled by a multi-office Duane Morris LLP team, with Zenni's in-house/general corporate counsel coordinating. The composition below comes primarily from contemporaneous press coverage of the April 2013 Federal Circuit affirmance (IPToday, Apr. 24, 2013) and from the individual attorneys' own firm/representative-matter profiles — not from a docket sheet, which I was unable to retrieve (see caveats). I could not pull the PACER appearance list, so I cannot say with certainty which of these attorneys formally entered an appearance, when, or whether pro hac vice motions were filed in S.D. Fla.

Documented defense counsel

Role structure — what the sourcing supports vs. what it doesn't

• Florida local/Florida-bar presence: the Duane Morris team deliberately paired out-of-state counsel (Chambers and Ruppert in San Francisco; Caggiano in D.C.) with Florida-licensed partners and associates in Boca Raton (Steele, Lefkowitz, Kline) and Miami (Gurland, Zaffuto). That is the standard structure for a S.D. Fla. patent case, and it is consistent with local counsel having been the Florida-bar signatories, but I have not confirmed who actually signed filings or moved for pro hac vice admission.
• Trial vs. appellate: the win was via summary judgment (Zenni I/II, Mar. 2012) and then a Federal Circuit affirmance (Apr. 19, 2013). Ruppert's bio affirmatively ties him to the appeal; the IPToday list is framed around the affirmance, implying the same core team briefed and argued it. The reported opinion (713 F.3d 1377) does not name counsel, so I cannot independently confirm the arguing attorney.
• Continuity across the firm: Chambers and Ruppert arriving at Duane Morris in Feb. 2010 (mid-litigation) is a notable wrinkle — it suggests the Zenni defense may have been brought over with them from Townsend and Townsend and Crew, and/or that Duane Morris's S.F. IP group was staffed onto the case after the complaint. I could not verify the original (2009) defense counsel of record, so the possibility that a different firm or attorney appeared initially and was later replaced is unresolved.

Explicit gaps / things I did not verify (do not treat as established)

1. No PACER docket sheet retrieved. I could not confirm formal entries of appearance, pro hac vice admissions, withdrawal/substitution entries, or which attorney signed which brief. The table reflects the team as reported, not the docket's appearance record.
2. Sealed filings: I found no indication that filings in this docket were sealed, but I could not inspect the full docket, so I cannot rule out sealed or restricted documents.
3. Docket-number caveat (carried forward from the case file). The metadata here assigns both 0:09-cv-61467 and 0:09-cv-61468 to Zenni, while public aggregators caption 61467 as Aspex Eyewear v. Great Eyeglasses, LLC. The federal-court docket for 61468 is also captioned Aspex Eyewear Inc. v. Laczay in at least one aggregator (reflecting Zenni founder/CEO Levente Tibor Laczay). I am not asserting that every Duane Morris attorney above appeared on both dockets.
4. Aggregator noise — deliberately excluded. A Patexia listing tied to the separate Aspex Eyewear v. Laczay docket shows Greenberg Traurig names (Paul Jonathan Brown, Mary-Olga Lovett, Michael A. Nicodema, Ericka Turk-Moore, Dwayne L. etc.) and other attorneys whose party alignment is ambiguous. I could not determine which side those Greenberg Traurig lawyers represented on that distinct docket, so I have not listed any of them as Zenni's counsel here. Treat any Greenberg Traurig attribution to the defense side as unverified.
5. Current status of counsel: Chambers appears to have since moved to Sideman & Bancroft, and Ruppert maintains a separate practice — noted only as firm/profile currency, not as a fact about the litigation.

Cross-reference note

The earlier "Plaintiff representatives" section already flagged the Duane Morris team in a disambiguation box, correctly warning that Lefkowitz's firm bio reads like a plaintiff entry but is a defense win. This section is the affirmative, correctly-attributed version of that roster and supersedes the brief mention there — no contradiction in substance, only added detail and explicit sourcing caveats.