Prosecution Insights
Last updated: April 19, 2026

Klarquist Sparkman, LLP (Viacyte, Inc.)

8 pending office actions • 3 clients

Portfolio Summary

8
Total Pending OAs
2
Final Rejections
6
Non-Final OAs

Client Portfolio (3 clients)

Client (Assignee)Pending OAs
Vertex Pharmaceuticals Incorporated 3
Viacyte, Inc. 3
Vertex Pharmaceuticals Incorporated 2

Pending Office Actions

App #TitleClientExaminerArt UnitStatusFiled
18647137 STEM CELL DERIVED PANCREATIC ISLET DIFFERENTIATION Vertex Pharmaceuticals Incorporated DICKINSON, PAUL W 1618 Non-Final OA Apr 26, 2024
18435390 TOOLS AND INSTRUMENTS FOR USE WITH IMPLANTABLE ENCAPSULATION DEVICES Viacyte, Inc. COLLINS, RAVEN 3735 Final Rejection Feb 07, 2024
18270314 ENHANCED DIFFERENTIATION OF BETA CELLS Vertex Pharmaceuticals Incorporated MONTANARI, DAVID A 1632 Non-Final OA Jun 29, 2023
18138904 ENCAPSULATION OF PANCREATIC CELLS DERIVED FROM HUMAN PLURIPOTENT STEM CELLS Viacyte, Inc. CRAIGO, WILLIAM A 1615 Non-Final OA Apr 25, 2023
18018787 IN VITRO DIFFERENTIATION OF PANCREATIC ENDOCRINE CELLS Vertex Pharmaceuticals Incorporated ROGERS, ERIC JASON 1638 Non-Final OA Jan 30, 2023
17894816 CRYOPRESERVED ENDOCRINE CELLS THAT EXPRESS CHROMOGRANIN A Viacyte, Inc. FOX, ALLISON M 1633 Non-Final OA Aug 24, 2022
17669874 PANCREATIC DIFFERENTIATION Vertex Pharmaceuticals Incorporated BATES, KEENAN ALEXANDER 1631 Final Rejection Feb 11, 2022
17560680 ENHANCED DIFFERENTIATION OF BETA CELLS Vertex Pharmaceuticals Incorporated NGUYEN, NGHI V 1653 Non-Final OA Dec 23, 2021

Managing Klarquist Sparkman, LLP (Viacyte, Inc.)'s Patent Prosecution?

IP Author helps law firms respond to office actions faster with AI-generated responses, examiner analytics, and prosecution intelligence.

Start Free Trial

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month