Prosecution Insights
Last updated: July 17, 2026

NxStage Medical Inc.

6 pending office actions • 4 art units • 5 examiners • 0 of 6 (0%) have an AI response strategy ready • 17 patents granted in the last 365 days

Portfolio Summary

6
Total Pending OAs
5
Non-Final OAs
1
Final Rejections
0
Advisory / Quayle

Case Difficulty Mix

Difficulty is derived from the rejection statutes on the most recent pending office action. §101-driven and multi-statute cases are graded Hard; §112-only and obviousness-type double-patenting cases are graded Easy; everything else is Medium. "Unknown" means we have not yet parsed a statute for that office action.

0
Hard (0%)
6
Medium (100%)
0
Easy (0%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§103 only6 (100%)

Industry Mix

How the docket's pending cases split across USPTO tech-center bands.

2
Life Sciences
33% of docket
0
Information Tech
0% of docket
0
Communications
0% of docket
0
Semiconductors
0% of docket
4
Mechanical / Eng
67% of docket
0
Business / Other
0% of docket

Time-on-OA Estimate

Manual office-action response work runs about 10 hours per case. The time-saved bands below show what IP Author's prosecution pipeline typically delivers — a conservative 20% on the low end, 35% in the middle, 50% on the high end.

60 h
Manual time on pending OAs
12 h
Time saved (low, 20%)
21 h
Time saved (mid, 35%)
0.5 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
KOO, BENJAMIN K 2 56.9% +49.7%
NGUYEN, BOI-LIEN THI 1 25.0% +36.8%
KIM, SUN U 1 78.6% +11.0%
WIEST, PHILIP R 1 81.4% +16.0%
PAZ ESTEVEZ, GUILLERMO G 1 16.7% +12.5%

Quick Wins (1)

Cases in front of an examiner with an allow rate of 80%+ where the difficulty is Easy or Medium. The top 1 ordered by deadline are shown.

App #TitleExaminerDue in
18480540 Fluid Conveyance Safety Devices, Methods, and Systems WIEST, PHILIP R

Hard Cases (2)

Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 2 ordered by deadline are shown.

App #TitleExaminerDue in
18631151 Peritoneal Dialysis Systems, Devices, and Methods NGUYEN, BOI-LIEN THI
17701944 Medicament Preparation Devices, Methods, and Systems PAZ ESTEVEZ, GUILLERMO G

Interview Candidates (6)

Cases in front of an examiner whose interview lift is 10 percentage points or more — i.e. interviewed cases historically resolve more favorably than non-interviewed ones. The top 6 ordered by deadline are shown.

App #TitleExaminerDue in
18631151 Peritoneal Dialysis Systems, Devices, and Methods NGUYEN, BOI-LIEN THI
18626465 Blood Treatment Device Priming Devices, Methods, and Systems KIM, SUN U
18480540 Fluid Conveyance Safety Devices, Methods, and Systems WIEST, PHILIP R
17704710 Medicament Preparation Devices, Methods, and Systems KOO, BENJAMIN K
17701944 Medicament Preparation Devices, Methods, and Systems PAZ ESTEVEZ, GUILLERMO G
17695176 Medicament Preparation Devices, Methods, and Systems KOO, BENJAMIN K

Top Art Units

Art UnitApps
3783 3
1779 1
1777 1
3781 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
18631151 Peritoneal Dialysis Systems, Devices, and Methods NGUYEN, BOI-LIEN THI 1779 §103 Non-Final OA Pending Apr 10, 2024
18626465 Blood Treatment Device Priming Devices, Methods, and Systems KIM, SUN U 1777 §103 Non-Final OA Pending Apr 04, 2024
18480540 Fluid Conveyance Safety Devices, Methods, and Systems WIEST, PHILIP R 3781 §103 Non-Final OA Pending Oct 04, 2023
17704710 Medicament Preparation Devices, Methods, and Systems KOO, BENJAMIN K 3783 §103 Non-Final OA Pending Mar 25, 2022
17701944 Medicament Preparation Devices, Methods, and Systems PAZ ESTEVEZ, GUILLERMO G 3783 §103 Final Rejection Pending Mar 23, 2022
17695176 Medicament Preparation Devices, Methods, and Systems KOO, BENJAMIN K 3783 §103 Non-Final OA Pending Mar 15, 2022

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