Bulldog Chemical LLC
Ex parte reexamination requester·2 ex parte reexams
Bulldog Chemical LLC has requested 2 USPTO ex parte reexaminations. It most often challenges patents owned by Grinding & Sizing Company LLC. 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 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 |
|---|---|---|---|---|---|
| 90/012,870 | May 31, 2013 | 8,324,136 | SYNERGISTIC BEAD LUBRICANT AND METHODS FOR PROVIDING IMPROVED LUBRICATION TO DRILLING FLUIDS FOR HORIZONTAL DRILLING | Grinding & Sizing Company LLC | Closed |
| 90/012,782 | Feb 4, 2013 | 8,324,136 | Synergistic bead lubricant and methods for providing improved lubrication to drilling fluids for horizontal drilling | Grinding & Sizing Company LLC | Closed |
See the full reexam picture for Bulldog Chemical LLC
Certificate outcomes, pendency, and the parties and examiners behind these cases. Free to sign up.