Prosecution Insights
Last updated: April 19, 2026

BISN Tec Ltd.

4 pending office actions

Portfolio Summary

4
Total Pending OAs
2
Final Rejections
2
Non-Final OAs

Pending Office Actions

App #TitleExaminerArt UnitStatusFiled
18709104 GAS-GENERATING CHEMICAL HEATING MIXTURES AND DOWNHOLE TOOL ASSEMBLIES WITH CHEMICAL HEATERS EMPLOYING SUCH WLODARSKI, NICHOLAS NMN 3672 Final Rejection May 10, 2024
18700104 RETRIEVABLE DOWNHOLE HEATER FULLER, ROBERT EDWARD 3676 Non-Final OA Apr 10, 2024
18602493 CHEMICAL HEAT SOURCES FOR USE IN DOWN-HOLE OPERATIONS FELTON, AILEEN BAKER 1734 Final Rejection Mar 12, 2024
18038204 SINGLE TRIP ANNULAR SEAL REPAIR METHOD AND ASSOCIATED EQUIPMENT RAILEY, JENNIFER A 3676 Non-Final OA May 22, 2023

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