ZHONG LAW LLC
Patent reexamination counsel·19 ex parte reexams
ZHONG LAW LLC has served as patent-owner counsel in 19 USPTO ex parte reexaminations, with 12 currently open. The firm most often represents LIGHT GUIDE INNOVATIONS LLC, AGIS Software Development LLC, and LONGHORN AUTOMOTIVE GROUP L. 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
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 (19)
| Control # | Filed | Patent | Title | Owner | Status |
|---|---|---|---|---|---|
| 90/015,843 | Dec 30, 2025 | 8,395,183 | LIGHT EMITTING APPARATUS | LIGHT GUIDE INNOVATIONS LLC | Open |
| 90/015,810 | Dec 22, 2025 | 9,534,744 | LIGHT EMITTING APPARATUS | LIGHT GUIDE INNOVATIONS LLC | Open |
| 90/015,812 | Dec 22, 2025 | 8,506,122 | LENS AND LIGHT EMITTING APPARATUS HAVING THE SAME | LIGHT GUIDE INNOVATIONS LLC | Open |
| 90/015,807 | Dec 20, 2025 | 8,237,352 | PHOTOLUMINESCENT SHEET | LIGHT GUIDE INNOVATIONS LLC | Open |
| 90/015,786 | Dec 16, 2025 | 8,823,048 | LIGHT EMITTING APPARATUS | LIGHT GUIDE INNOVATIONS LLC | Open |
| 90/015,771 | Dec 11, 2025 | 7,936,415 | LIGHT SOURCE APPARATUS AND LIQUID CRYSTAL DISPLAY HAVING THE SAME | LIGHT GUIDE INNOVATIONS LLC | Open |
| 90/015,764 | Dec 10, 2025 | 8,408,778 | LIGHT SOURCE AND DISPLAY DEVICE HAVING THE SAME | LIGHT GUIDE INNOVATIONS LLC | Open |
| 90/015,765 | Dec 10, 2025 | 8,616,729 | LENS AND LIGHT EMITTING APPARATUS HAVING THE SAME | LIGHT GUIDE INNOVATIONS LLC | Open |
| 90/015,760 | Dec 9, 2025 | 8,267,537 | BACKLIGHT UNIT AND DISPLAY DEVICE HAVING THE SAME | LIGHT GUIDE INNOVATIONS LLC | Open |
| 90/015,742 | Dec 2, 2025 | 8,237,352 | PHOTOLUMINESCENT SHEET | LIGHT GUIDE INNOVATIONS LLC | Open |
| 90/015,702 | Nov 19, 2025 | 8,213,093 | LENS AND LIGHT EMITTING APPARATUS HAVING THE SAME | LIGHT GUIDE INNOVATIONS LLC | Open |
| 90/015,633 | Oct 24, 2025 | 7,922,380 | LIGHT UNIT AND DISPLAY DEVICE HAVING THE SAME | LIGHT GUIDE INNOVATIONS LLC | Open |
| 90/019,867 | Feb 26, 2025 | 7,987,002 | ARRANGEMENT FOR DISTRIBUTED MEASUREMENT SYSTEM FOR MEASUREMENT AND SIMULATION IN DISTRIBUTED CONTROL SYSTEMS | LONGHORN AUTOMOTIVE GROUP L | Closed |
| 90/015,259 | Jul 17, 2023 | 8,118,218 | METHOD AND APPARATUS FOR PROVIDING ELECTRONIC PURSE | GROWALD, LINDSEY | Closed |
| 90/014,889 | Oct 22, 2021 | 7,630,724 | METHOD OF PROVIDING A CELLULAR PHONE/PDA COMMUNICATION SYSTEM | AGIS Software Development LLC | Closed |
| 90/014,890 | Oct 22, 2021 | 7,031,728 | CELLULAR PHONE/PDA COMMUNICATION SYSTEM | AGIS Software Development LLC | Closed |
| 90/014,817 | Aug 3, 2021 | 7,260,846 | Intrusion Detection System | LONGHORN HD LLC | Closed |
| 90/014,507 | May 15, 2020 | 8,213,970 | METHOD OF UTILIZING FORCED ALERTS FOR INTERACTIVE REMOTE COMMUNICATIONS | AGIS Software Development LLC | Closed |
| 90/014,508 | May 15, 2020 | 9,408,055 | METHOD TO PROVIDE AD HOC AND PASSWORD PROTECTED DIGITAL AND VOICE NETWORKS | AGIS Software Development LLC | Closed |
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- Fish & Richardson P.C.67 reexams · 7 pending
- Sterne, Kessler, Goldstein & Fox P.L.L.C.62 reexams · 7 pending
- Heim, Payne & Chorush, LLP36 reexams · 28 pending
- BANNER & WITCOFF, LTD.34 reexams · 2 pending
- FINNEGAN, HENDERSON, FARABOW, GARRETT & DUNNER, L.L.P.34 reexams · 1 pending
See the full reexam picture for ZHONG LAW LLC
Certificate outcomes, pendency, and the parties and examiners behind these cases. Free to sign up.