We see the following for US patents published since ODF was approved:
- US20060271574A1 - Exposing embedded data in a computer-generated document
- US20060259854A1 - Structuring an electronic document for efficient identification and use of document parts
- US20060206794A1 - Method and apparatus for maintaining relationships between parts in a package
- US20060190815A1 - Structuring data for word processing documents
- US20060149785A1 - Method and Apparatus for Maintaining Relationships Between Parts in a Package
- US20060149758A1 - Method and Apparatus for Maintaining Relationships Between Parts in a Package
- US20060143459A1 - Method and system for managing personally identifiable information and sensitive information in an application-independent manner
- US20060143195A1 - Method and Apparatus for Maintaining Relationships Between Parts in a Package
- US20060136816A1 - File formats, methods, and computer program products for representing documents
- US20060136812A1 - Method and system for linking data ranges of a computer-generated document with associated extensible markup language elements
- US20060136553A1 - Method and system for exposing nested data in a computer-generated document in a transparent manner
- US20060136477A1 - Management and use of data in a computer-generated document
- US20060136432A1 - Method and system for controlling software to facilitate cross-version collaboration of files
- US20060107225A1 - Method and computer-readable medium for interacting with a portion of an electronic document
- US20050278272A1 - Method and apparatus for maintaining relationships between parts in a package
- US20050268221A1 - Modular document format
- US20050149861A1 - Context-free document portions with alternate formats
- US20050125720A1 - Programmable object model for namespace or schema library support in a software application
Some of these, like the packing ones, seem to apply directly to OOXML. What isn't clear to us is why Microsoft would pursue patent protection for patents rights that their are promising that they won't assert over users of OOXML.