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The following FIELD SYSTEMS RESEARCH, LLC (“FSR”) products are protected by patents as indicated. This website is provided to satisfy the virtual patent marking provisions of various jurisdictions including the virtual patent marking provisions of the America Invents Act. The following list of products may not be all inclusive, and other FSR products not listed here may be protected by one or more patents or applications that are currently pending.

Air-Lock®️ Centerlock®️ indicator with center mounted, double slit, tapered screw system

United States Patent No. 8,950,107, United States Patent No. D1,083,020 and patent pending

Air-Lock®️ Trapped Air and EVA Foam indicator with slit screw attachment system

United States Patent No. 8,950,107

Depth Skru™ Magnetic Weight system and slit screw attachment system

United States Patent No. 8,950,107 and United States Patent No. 9,867,365

Depth Skru™ adjustable, valved balloon indicator system and slit screw attaching system

United States Patent No. 8,950,107 and United States Patent No. 11,109,580

Contact Us

For product info please visit fishairlock.com

4937 Hartford Place, Lake Oswego, OR 97035

1-503-320-8991

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