Document ID: s3://data.kl3m.ai/documents/govinfo/USCOURTS/USCOURTS-cand-3_17-cv-04426/USCOURTS-cand-3_17-cv-04426-4/pdf.json

Parties Involved:
Symantec Corporation
Counter-defendant
Zscaler, Inc.
Counter-claimant

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United States District Court

Northern District of California

UNITED STATES DISTRICT COURT

NORTHERN DISTRICT OF CALIFORNIA

SYMANTEC CORPORATION,

Plaintiff,

v.

ZSCALER, INC.,

Defendant.

Case No. 17-cv-04426-JST (MEJ)

ORDER RE: LETTER BRIEFS

Re: Dkt. Nos. 165, 166

The parties filed two letter briefs for the undersigned’s consideration. See Amendment Ltr. 

Br., Dkt. No. 165; Chart Sufficiency Ltr. Br., Dkt. No. 166. 

1. Zscaler shall file a supplemental brief and/or declaration from counsel 

demonstrating how the three facts identified in the Letter Brief (amendment of the complaint, 

disclosure Symantec would not seek any claim construction that could render claim 5 non-abstract, 

and abandoning of the representative claim of the ‘116 patent) constitute newly discovered 

information justifying amendment of Zscaler’s invalidity contentions or otherwise provide “good 

cause” under Patent Local Rule 3-6.

2. The undersigned will not strike Zscaler’s 41 invalidity charts. The undersigned 

may order Zscaler to supplement its charts, but at present lacks sufficient information to determine 

whether that is appropriate. No later than March 30, 2018, Symantec shall select 7 charts it 

contends do not comply with Patent Local Rule 3-3(c) and provide a detailed analysis of why the

charts are deficient. 

These supplemental briefs are due by April 3, 2018, and responses by April 13, 2018.

IT IS SO ORDERED.

Dated: March 20, 2018

______________________________________

MARIA-ELENA JAMES

United States Magistrate Judge

Case 3:17-cv-04426-JST Document 168 Filed 03/20/18 Page 1 of 1