Neuralstem Inc.

Ex parte reexamination requester·5 ex parte reexams

Neuralstem Inc. has requested 5 USPTO ex parte reexaminations. It most often challenges patents owned by Neurospheres Holdings Ltd. and Stemcells California 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 patent owners challenged

Neurospheres Holdings Ltd.4

Stemcells California Inc.1

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 (5)

Control #	Filed	Patent	Title	Owner	Status
90/013,375	Oct 15, 2014	7,115,418	METHODS OF PROLIFERATING UNDIFFERENTIATED NEURAL CELLS	Stemcells California Inc.	Closed
90/013,347	Sep 19, 2014	5,851,832	IN VITRO GROWTH AND PROLIFERATION OF MULTIPOTENT NEURAL STEM CELLS AND THEIR PROGENY	Neurospheres Holdings Ltd.	Closed
90/013,338	Sep 5, 2014	6,294,346	USE OF MULTIPOTENT NEURAL STEM CELLS AND THEIR PROGENY FOR THE SCREENING OF DRUGS AND OTHER BIOLOGICAL AGENTS	Neurospheres Holdings Ltd.	Closed
90/013,322	Aug 29, 2014	6,497,872	NEURAL TRANSPLANTATION USING PROLIFERATED MULTIPOTENT NEURAL STEM CELLS AND THEIR PROGENY	Neurospheres Holdings Ltd.	Closed
90/013,323	Aug 29, 2014	7,361,505	MULTIPOTENT NEURAL STEM CELL COMPOSITIONS	Neurospheres Holdings Ltd.	Closed

Other reexam requesters

See the full reexam picture for Neuralstem Inc.

Certificate outcomes, pendency, and the parties and examiners behind these cases. Free to sign up.