Source: s3://data.kl3m.ai/documents/govinfo/USCOURTS/USCOURTS-cand-3_18-cv-01662/USCOURTS-cand-3_18-cv-01662-10/pdf.json

Nature of Suit Code: 830
Nature of Suit: Patent
Cause of Action: 35:271 Patent Infringement

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United States District Court

Northern District of California

UNITED STATES DISTRICT COURT

NORTHERN DISTRICT OF CALIFORNIA

ILLUMINA, INC.,

Plaintiff,

v.

NATERA, INC.,

Defendant.

Case No. 18-cv-01662-SI 

ORDER RE DISCOVERY DISPUTE

Re: Dkt. No. 181

On March 23, 2020, the parties filed another discovery dispute letter - this is the third letter

arguing over the production of a document, an email chain, used to refresh the recollection of 

Illumina’s 30(b)(6) witness. Dkt. No. 181. The Court previously ordered Illumina to “produce the 

entire document that refreshed its 30(b)(6) deponent’s recollection because the witness was provided 

the document during deposition preparation and he directly drew upon it during his testimony.” Dkt. 

No. 179 at 1. Illumina produced the full email chain but refuses to produce attachments referenced

in the same email chain arguing they are irrelevant because they were not used to prepare Illumina’s

30(b)(6) witness. Dkt. No. 181 at 3-4. The Court agrees; if the attachments were not seen by the 

witness, then Illumina has complied with the Court’s March 3, 2020 order and need not produce the 

attachments mentioned in the email chain. 

Natera also raises concerns regarding Illumina’s privilege and redaction log. Dkt. No. 181 

at 2-3. The two versions of the email chain, as displayed by Natera in the discovery dispute letter 

is, at best, perplexing. Dkt. No. 181 at 2. Unless it has already done so, Illumina shall update its 

privilege log to fully and adequately represent which documents it is withholding and on what basis. 

Illumina shall also certify that all necessary documents have been produced or are otherwise 

included on Illumina’s privilege log. 

IT IS SO ORDERED.

Dated: March 27, 2020 ______________________________________

SUSAN ILLSTON

United States District Judge

Case 3:18-cv-01662-SI Document 184 Filed 03/27/20 Page 1 of 1