Prosecution Insights
Last updated: April 19, 2026

Kdw Firm Pllc (1580)

7 pending office actions • 2 clients

Portfolio Summary

7
Total Pending OAs
3
Final Rejections
4
Non-Final OAs

Client Portfolio (2 clients)

Client (Assignee)Pending OAs
Repligen Corporation 5
Avitide LLC 2

Pending Office Actions

App #TitleClientExaminerArt UnitStatusFiled
18901774 PNEUMATIC ACTUATOR ASSEMBLY FOR REDUCED DEAD LEG Repligen Corporation LE, MINH Q 3753 Final Rejection Sep 30, 2024
18281147 AFFINITY AGENTS Avitide LLC LEE, JIA-HAI 1658 Non-Final OA Sep 08, 2023
18200112 RECOVERY OF PERFUSION BLEED PRODUCT VIA ALTERNATING TANGENTIAL FLOW FILTRATION IN A SEDIMENTATION REACTOR Repligen Corporation CARREON, ADRIAN JOHN 1799 Non-Final OA May 22, 2023
18031808 AFFINITY LIGAND LIBRARIES OF THREE-HELIX BUNDLE PROTEINS AND USES THEREOF Avitide LLC BUNKER, AMY M 1684 Non-Final OA Apr 13, 2023
18098926 SYSTEMS AND METHODS FOR FILTRATION OF CELL CULTURES Repligen Corporation LOPEZLIRA, ASHLEY NICOLE 1799 Non-Final OA Jan 19, 2023
18071899 VESSEL, SYSTEM, AND ASSOCIATED METHOD FOR PRODUCT CONCENTRATION Repligen Corporation PATEL, PRANAV N 1777 Final Rejection Nov 30, 2022
17719850 SYSTEMS AND METHODS FOR TANGENTIAL FLOW DEPTH FILTRATION Repligen Corporation HUANG, RYAN 1777 Final Rejection Apr 13, 2022

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