Emerachem Holdings, LLC
Patent owner in reexamination·6 ex parte reexams
Emerachem Holdings, LLC's patents have been the subject of 6 USPTO ex parte reexaminations. Its patents are most often challenged by Volkswagen Group of America, Inc.. 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 requesters
Outcome track record
How reexams of this owner's patents resolve: claims confirmed, amended, mixed, or fully canceled.
- Certificate outcome split across every bucket
- Claim-survival rate
Defense metrics
Claim-survival rate, average pendency, and the open/closed split across every reexam of this owner's patents.
- Survival rate of closed proceedings
- Average pendency in months
Challengers & examiners
Which requesters most often challenge this owner's patents, and which examiners decide them.
- Top requesters
- Most frequent examiners
Recent reexaminations (6)
| Control # | Filed | Patent | Title | Requester | Status |
|---|---|---|---|---|---|
| 90/014,286 | Apr 16, 2019 | 7,951,346 | Methods And Systems For Reducing Particulate Matter In A Gaseous Stream | Volkswagen Group of America, Inc. | Closed |
| 90/014,151 | Jun 13, 2018 | 6,037,307 | Catalyst/Sorber For Treating Sulfur Compound Containing Effluent | Volkswagen Group of America, Inc. | Closed |
| 90/014,123 | Apr 12, 2018 | 7,951,346 | Methods And Systems For Reducing Particulate Matter In A Gaseous Stream | Volkswagen Group of America, Inc. | Closed |
| 90/014,108 | Mar 12, 2018 | 5,451,558 | Process For The Reaction And Absorption Of Gaseous Air Pollutants, Apparatus Therefor And Method Of Making The Same | Volkswagen Group of America, Inc. | Closed |
| 90/014,102 | Mar 6, 2018 | 5,953,911 | Regeneration of Catalyst/Absorber | Volkswagen Group of America, Inc. | Closed |
| 90/014,101 | Mar 5, 2018 | 5,599,758 | Regeneration Of Catalyst/Absorber | Volkswagen Group of America, Inc. | Closed |
See the full reexam picture for Emerachem Holdings, LLC
Certificate outcomes, pendency, and the parties and examiners behind these cases. Free to sign up.