Ch20 Incorporated
Patent owner in reexamination·3 ex parte reexams
Ch20 Incorporated's patents have been the subject of 3 USPTO ex parte reexaminations. Its patents are most often challenged by Meras Engineering, Inc. and AquaPulse Systems 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 (3)
| Control # | Filed | Patent | Title | Requester | Status |
|---|---|---|---|---|---|
| 90/013,837 | Oct 19, 2016 | 6,767,470 | METHOD FOR CLEANING AND MAINTAINING WATER DELIVERY SYSTEMS | Meras Engineering, Inc. | Closed |
| 90/013,123 | Jan 17, 2014 | 6,767,470 | METHOD FOR CLEANING AND MAINTAINING WATER DELIVERY SYSTEMS | Meras Engineering, Inc. | Closed |
| 90/012,686 | Sep 15, 2012 | 5,863,584 | METHOD FOR TREATING PRODUCE AND PROCESS WATER | AquaPulse Systems Inc. | Closed |
See the full reexam picture for Ch20 Incorporated
Certificate outcomes, pendency, and the parties and examiners behind these cases. Free to sign up.