ExamPat

Sang Young Han

Ex parte reexamination requester·8 ex parte reexams

Sang Young Han has requested 8 USPTO ex parte reexaminations, with 8 currently open. It most often challenges patents owned by Shenzhen Haike Innovation Electronics Co. Ltd., SharkNinja Operating LLC, and Meidi Chen. 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

4
25
4
26

Top patent owners challenged

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 (8)

Control #FiledPatentTitleOwnerStatus
90/016,269May 12, 202612,399,070FLOATING THERMOMETERShenzhen Haike Innovation Electronics Co. Ltd.Open
90/016,067Mar 20, 202612,426,739COOKING DEVICES AND COMPONENTS THEREOFSharkNinja Operating LLCOpen
90/015,739Jan 8, 2026D1,019,223Square TableMeidi ChenOpen
90/015,863Jan 7, 2026D1,067,019Cabinet column—Open
90/015,747Dec 26, 2025D1,045,239PET CARRIERVermont Juvenile Furniture Mfg. Inc.Open
90/015,832Dec 25, 202511,039,601CONTROL METHOD AND DEVICE FOR BARKING PROHIBITION IN BARKING PROHIBITION PIECEShenzhen Smart Pet Technology CO. Ltd.Open
90/015,668Nov 20, 2025D1,077,959Swim finShenzhen Yatao Technology Co. Ltd.Open
90/015,683Nov 13, 2025D949,681PAPER BOXYongqi HouOpen

Other reexam requesters

See the full reexam picture for Sang Young Han

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