Cellectis S.A.
Ex parte reexamination requester·2 ex parte reexams
Cellectis S.A. has requested 2 USPTO ex parte reexaminations. It most often challenges patents owned by Duke University. 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
212
Top patent owners challenged
Outcome track record
How this requester's challenges resolve: claims confirmed, amended, mixed, or fully canceled.
- Certificate outcome split across every bucket
- Share of challenges that canceled claims
Challenge metrics
Cancellation rate, average pendency, and the open/closed split across every reexam this requester has filed.
- Outcome rate of closed challenges
- Average pendency in months
Examiners & defense counsel
Which examiners decide this requester's challenges, and which firms defend the targeted patents.
- Most frequent examiners
- Top opposing counsel
Recent reexaminations (2)
| Control # | Filed | Patent | Title | Owner | Status |
|---|---|---|---|---|---|
| 90/012,704 | Oct 15, 2012 | 8,143,015 | METHODS OF CLEAVING DNA WITH RATIONALLY-DESIGNED MEGANUCLEASES | Duke University | Closed |
| 90/020,027 | Oct 5, 2012 | 8,021,867 | RATIONALLY-DESIGNED MEGANUCLEASES WITH ALTERED SEQUENCE SPECIFICITY AND DNA-BINDING AFFINITY | Duke University | Closed |
See the full reexam picture for Cellectis S.A.
Certificate outcomes, pendency, and the parties and examiners behind these cases. Free to sign up.