#### Patent Data/SGML -- Red Book

July 25, 2000

Dear Customer,

All of the Red Book files shipped to date and until further notice
should be considered test data. Please find included a description of
the current conditions which, to the best of our knowledge, fully
characterize the test data. If you discover any unexpected conditions,
please notify us immediately using the email addresses listed above.

Over the next several months, the conditions noted will be resolved. Any
modifications to the DTD required by the resolution of a condition, and
the proposed modifications described below, will also be made. In
addition, any conditions noted by customers will be resolved.

At the time that all known conditions are resolved, the DTD version will
be incremented and the specification updated accordingly. Red Book files
delivered after that date will be considered production data. After that
date, Blue Book data will no longer be shipped to any customers.

The cutover date is completely dependent on achieving a quality of data
that meets the requirements of our customers. Achieving this goal in the
shortest time possible depends on your continuous and immediate feedback
in response to the test data we send you. Any suggestions you may have
for speeding the process are appreciated.

Sincerely,

Ed Johnson

# Red Book Conditions as of 2000 July 25 Issue

Current DTD version: V2.1 2000-07-10

## Resolved conditions

1.  Sequence Listing (DNA) data is now tagged as the SEQ-LST complex
    work unit (CWU). In cases where the provided data does not comply
    with the old/new format specifications, the data is included as a
    table within the SEQ-LST CWU.

2.  Procedures for correcting conversion problems encountered with
    embedded diacritical characters have been implemented by the data
    capture contractor.

3.  Original (deleted) and add (inserted) text in reissue patents now
    have correct revision dates and manual procedures have been
    established for processing reissues of reissues.

4.  Element B122US is now being initialized.

5.  Highlighting problems within the title of the invention have been
    resolved.

6.  Patents without exemplary drawings no longer include an external
    reference to the exemplary drawing.

7.  CALS Tables no longer define a column with a negative width.

8.  Changed content model for B700 from (B720,B730?,B740?,B745) to
    (B720,B730\*,B740?,B745). A document may have more than one
    assignee.

9.  Changed the PTEXT content model from (B830 \| CIT \| CLREF \| CRF \|
    CWU \| DFREF \| DNUM \| FGREF \| FOO \| FOR \| HIL \| IMG \| LST \|
    LSTREF \| PAREF \| PDAT \| SEQREF \| TBLREF) to (PDAT \| B830 \| CIT
    \| CLREF \| CRF \| CWU \| DFREF \| DNUM \| FGREF \| FOO \| FOR \|
    HIL \| IMG \| LST \| LSTREF \| PAREF \| SEQREF \| TBLREF). Moving
    PDAT to the start of the list is required for XML compatibility.

10. Changed content model for B540 (title), H (headers), and CLM
    (claims) to allow complex work units. These elements are found to
    contain complex work units.

11. Implemented B645US containing the Reexamination results statement.

## Unresolved Conditions

### Conditions requiring action by data-capture contractor

1.  The Mathematica process, from which math complex work units are
    derived, introduces unresolved Unicode hexadecimal special character
    references. A complete list of problem codes (identified by the
    Mathematica font set) has been identified and provided to the
    application provider for resolution.

2.  Procedures to allow special character embedded within mathematical
    structures have been defined, and required changes to Mathematica
    are being tested.

3.  Slashes still exist between the series code and the application
    number within some DNUM elements.

4.  Design Patents sometime appear as \"D. 99999\", \"D0099999\", or
    \"Des. 99999\".

5.  A schedule for the Red Book backlog processing has been established
    and is nearing completion.

### Conditions requiring action by USPTO

1.  While drawing pages are captured, individual figures are not
    captured or identifiable as such. Requires contract modification.

## Pending Red Book DTD Modifications

1.  Change content model for CLMSTEP from (PTEXT \| PARA)+ to (PTEXT)+.
    Claim steps cannot be styled the same as paragraphs.

2.  Add element for block pullouts. A block pullout is a large area on a
    source page that is captured as an image rather than as text. Block
    pullouts may be as large as a page. Character pullouts (characters
    for which there is no glyph in any of the included character sets)
    are currently tagged as CUSTOM-CHARACTER.

3.  Replace every occurrence of INS-S, INS-E, DEL-S, DEL-E, all defined
    as EMPTY, with INSERT and DELETE, both defined as (#PCDATA). This
    change is required to avoid introducing duplicate or orphaned tags
    where an insertion or deletion range spans elements.

4.  Add elements for numbering individual figures as well as the drawing
    pages on which they are presented. This change will support
    hypertext links between references to figures and individual
    figures.

5.  Add exemplary drawing element.

## Pending Red Book Specification Modifications

1.  Modify specification to allow for high-resolution half tone and
    color images. This includes allowing 400dpi resolution and LZW
    compression (currently 300dpi and CCITT G4 only).

2.  Add markup instructions for Statutory Invention Registration patent
    numbers, H, HD, and HP (utility, design, and plant, respectively).

3.  Modify specification to require TIFF images for all CWU tables.

## Planned Modifications to Red Book

1.  An XML-based markup language for chemical structures has been
    published by W3C, called CML (chemical markup language). When
    ChemDraw is capable of generating CML output, it will be included in
    document instances.

2.  Red Book will be modified to full compliance with XML.