ExamPat

Vorys, Sater, Seymour and Pease, LLP

Patent reexamination counsel·7 ex parte reexams

Vorys, Sater, Seymour and Pease, LLP has served as patent-owner counsel in 7 USPTO ex parte reexaminations, with 1 currently open. The firm most often represents Duk San Neolux Co. Ltd., Darco International Corporation, and Rhodia Operations. ExamPat indexes the full prosecution record for each proceeding, including office-action grounds, certificate outcomes, and downstream PTAB and Federal Circuit decisions.

Filings by year

2
19
2
20
1
21
1
22
1
26

Top patent owners represented

Outcome track record

How this firm's reexams resolve once a certificate issues: all claims confirmed, amended, mixed, or canceled.

  • Certificate outcome split across every bucket
  • Share of proceedings where claims survived

Practice metrics

Certificate rate, average pendency, and the open/closed split across the firm's full reexam docket.

  • Certificate rate of closed proceedings
  • Average pendency in months

Examiners & adversaries

Which examiners most often decide this firm's reexams, and which requesters most often challenge its patents.

  • Most frequent examiners
  • Top opposing requesters

Recent reexaminations (7)

Control #FiledPatentTitleOwnerStatus
90/016,187Apr 16, 2026D1,102,590SYRINGE BARRELDarco International CorporationOpen
90/014,983Mar 16, 202210,319,916COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME, AND AN ELECTRONIC DEVICEDuk San Neolux Co. Ltd.Closed
90/014,855Sep 10, 202110,600,969Compound for organic electronic element, organic electronic element using the same, and an electronic device thereofDuk San Neolux Co. Ltd.Closed
90/014,565Aug 26, 202010,196,322SOLVENT SYSTEMS FOR DICYANDIAMIDE AND/OR ALKYL THIOPHOSPHORIC TRIAMIDE AND USE IN AGRICULTURAL APPLICATIONSRhodia OperationsClosed
90/014,546Jul 7, 20208,867,610SYSTEM AND METHODS FOR VIDEO AND AUDIO DATA DISTRIBUTIONRealtime Adaptive Streaming LLCClosed
90/014,404Nov 4, 201910,056,560Compound for Organic Electronic Element, Organic Electronic Element Using the Same, and an Electronic DeviceDuk San Neolux Co. Ltd.Closed
90/014,405Nov 4, 201910,141,516Compound for Organic Electric Element, Organic Electric Element Comprising the Same and Electronic Device ThereofDuk San Neolux Co. Ltd.Closed

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