The policies contain significant differences, but tend to serve the same purpose.
This coverage includes movable collateral, such as equipment or inventory; intellectual property, including patents and trademarks and copyrightable matters (but not copyrighted matters which are excluded from the UCC); software and software embedded in goods; general intangibles like contract rights; payment intangibles; and investment property like common stock.
Additionally, the coverage insures the gap between the search report and the date of filing.
A Lender's Policy will insure attachment, perfection and priority of a secured party's lien.
A Buyer's Policy will insure that personal property items are purchased "free and clear" of lien.