Bluesheet Contents     PDF version

File Description [top]

The Patents Citation Index (PCI - File 342), produced by Thomson Reuters (Scientific), provides access to 54.5 million patent and literature citations found in 7.8 million patent families. In each update, Examiner citations from about 50,000 documents from major patent-issuing authorities are added to the file.

Each record in the database describes a patent family for a single invention. The patent family data corresponds to the patent family data provided in Derwent World Patents Index (DWPI - Files 350,351,352) at the time that the most recent citations were added to the database.

The PCI record provides a view of retrospective technology for an invention (cited patents and literature references) and its impact on subsequent technology (citing patents). Citations referenced by examiners or inventors in patent documents are called "cited" patents or literature references in the PCI record and correspond to the search reports that accompany patent publications. When a citation references older inventions/patents, it is also added to the family record as a "citing" patent.

Examiner citations are provided for family members added to the file from the following patent-issuing authorities: Belgium (BE), European Patent Office (EP), France (FR), Germany (DE), Japan (JP), Netherlands (NL), Spain (ES), United Kingdom (GB), United States (US), and WIPO/PCT (WO).

Inventor citations are also included for the time period, May 1994 - May 1997. For this same time period, examiner citations from Austria, Australia, Canada, Netherlands, New Zealand, South Africa, Sweden, and Switzerland are also included. This data remains in the file and is searchable.

Since PCI contains limited information about the patent family, the DWPI accession number can be used in DWPI (Files 350,351,352) to obtain detailed information, such as abstracts, about cited and citing patents as well as family members. Various MAP command options allow easy transfer of DWPI accession numbers and patent numbers between the files.

Tips [top]

Subject Coverage [top]

Print Counterparts [top]

• None

Dialog File Data [top]

Document Types Indexed [top]

• Patents

Geographic Coverage [top]

• International

Geographic Restrictions [top]

• None

Special Features [top]

• ERA Available
• DIALOG Alert Available
• IDPAT Available
• MAP Available

DialIndex/OneSearch Categories [top]

Contact [top]

Patent Citation Index is provided by Thomson Reuters (Scientific) Ltd.. Content questions can be directed to: http://scientific.thomsonreuters.com/support/techsupport/ or:

Terms and Conditions [top]

For Dialog's Redistribution and Archive Policy, enter HELP ERA online. The following terms and conditions also apply.

The online use by customers of the databases (Thomson Reuters databases) of Thomson Reuters (Scientific) and all data obtained from Thomson Reuters databases is subject to the following terms and conditions.

1. All data obtained from Thomson Reuters databases and all copyright therein is and shall at all times remain the property of Thomson Reuters.

2. All data obtained from Thomson Reuters databases are to be treated as strictly confidential and may not be copied, duplicated, translated into any language or in any way reproduced without the prior written consent of Thomson Reuters, except for internal use only. Customers may redistribute Thomson Reuters data obtained from the DIALOG service in accordance with Dialog's ERA redistribution program.

3. The customer undertakes and agrees that:

(a) any searches against Thomson Reuters databases will be conducted by the customer's employees for the customer's internal use only, and the results of such searches will not be disclosed or transmitted to any third party, except as permitted in paragraphs 3(b) - 3(g) below;

(b) if the customer wishes to conduct searches on behalf of a third party, the customer will notify Thomson Reuters and obtain written consent; searches on behalf of a third party will not be permitted unless and until permission has been granted by Thomson Reuters in writing;

(c) any search conducted on behalf of a third party must be performed directly by the customer's employees and will be solely for that third party;

(d) prior to any search being conducted on behalf of a third party the customer will ensure that the third party undertakes to the customer and Thomson Reuters that the results of such search are for that third party's own internal use only;

(e) whenever the customer obtains data from Thomjson Reuters databases for a third party, the customer shall notify that third party in writing of the ownership by Thomson Reuters of the data concerned and all copyright therein;

(f) copies of online and offline prints must be conspicuously marked:

FOR INTERNAL USE ONLY (c) THOMSON REUTERS 1995";

(g) the term "third party" does not refer to a patent issuing authority, such as a national Patent Office, where data obtained from Thomson Reuters databases is required by law or regulation in the normal conduct of the patent issuing authority's day-to-day business.

4. Output from online searches may be stored temporarily in electronic form for a maximum period of three months for the purpose of editing or reformatting the search results. For longer term storage, a Downloading Agreement with Thomson Reuters must be completed and the appropriate fees paid.

5. In the event of a breach by the customer, its employees or any third party, of any of these terms and conditions Thomson Reuters shall be entitled to terminate the customer's right of access to Thomson Reuters databases immediately without notice.

6. Thomson Reuters shall not in any circumstances be liable or responsible for the completeness or accuracy of any data comprised in the Thomson Reuters databases nor the transmission of such data and will not be liable for any indirect, consequential or economic loss of profit resulting directly or indirectly from the use by the customer or any third party of such data.

7. The customer will not assign any of its rights under these terms and conditions in whole or in part without the prior written consent of Thomson Reuters.

8. The invalidity, illegality or unenforceability in whole or in part of any of these terms and conditions shall not affect the validity, legality, and enforceability of the remaining terms and conditions.

9. These terms and conditions shall override and prevail over any other terms and conditions in any document or other communication used by the customer in effecting its subscription to the Thomson Reuters databases.*

10. These terms and conditions shall be governed by and construed in accordance with English law.

*For the purposes of this provision, this is in reference to direct agreement between Thomson Reuters Publications and the Customer organization.

Any questions concerning the interpretation of any of these conditions should be referred to the nearest Thomson Reuters office for clarification.

SAMPLE RECORD [top]

BASIC INDEX [top]

¹ All chemical names are indexed as complete individual words and chemically significant segment words. Words such as GLUCOPYRANOSYL can be retrieved by either segment, e.g., S GLUCO or S PYRANOSYL. Any term in the Basic Index can be limited to full term using /FW, e.g., S PYRANOSYL/FW; S IMIDAZOLE/TI,FW. Locants, i.e., numbers indicating the position of a chemical group within the structure, are searched as words, e.g., S 1(W)4.

ADDITIONAL INDEXES [top]

² Non-Priority application data is included from DWPI update 198409 forward.

³ Special suffixes are used to further restrict certain prefix fields. Cited and citing fields can be restricted with /AU (Author citation) and /EX (Examiner Citation). Family member fields can be restricted with /PB (patent basic) or /PR (Priority Application).and in some cases, with /CT (Cited Patent) or /CG (Citing Patent).

⁴ Present from 1978 forward. Last name of author/inventor was limited to 10 characters prior to DWPI update 199216.

⁵ Patent Assignee names were limited to 24 characters prior to DWPI update 199216.

⁶ Includes Patent Assignees or Inventors from main and cited/citing patents.

⁷ For EP and WO (PCT) patent family members only. Designated States can be restricted to /NA (National) or /RN (Regional).

⁸ For definitions of patent kind codes, enter HELP KIND 351 or HELP KIND 352 online. .for definitions of the document kind codes.

⁹ Patent family data is updated only when new citing or cited patents are added to the record. See files 350,351,352 for current family data.

¹⁰ To search cited (CT=) or citing (CG=) patents using the PN= prefix, enter MAP CTPN or MAP CGPN. To search patent numbers (PN=) as cited or citing patents, use MAP PNCT or MAP PNCG.

¹¹ Field of Search (FS=) contains the US and IPC classifications searched by the examiner. When possible, the classes can be searched in standard formats. Some classes are provided as ranges, e.g., 701--704, so they cannot be standardized.

¹² Relevance Category codes, also known as relevance indicators, include: A - Technological background; D - Document cited in application; E - Earlier patent document; L - Document cited for other reasons; O - Non-written disclosure; P - Intermediate document; T - Theory or principle; X - Relevant if taken alone; Y - Relevant if combined with other documents; & - Member of same patent family.

¹³ Cited or Citing DWPI Accession Numbers (RX=)can be MAPped to their original DWPI Accession Numbers using MAP RXAA.

LIMIT [top]

SORT [top]

RANK [top]

MAP [top]

USER-DEFINED FORMAT OPTIONS [top]

PREDEFINED FORMAT OPTIONS [top]

¹⁴ Bibliographic data consists of the Dialog Accession Number, the Main DWPI Accession Number, Full Title, Patent Assignees, Inventors, the Patent Family Table, Priority Application Data and Filing Details for Family Members.

DIRECT RECORD ACCESS [top]

Rates [top]

Rates For File: Patents Citation Index[342]

                                Standard  Subscrib
Cost per DialUnit:                $27.55    $30.30
Cost per Minute:                   $3.83     $4.23
Report Elements                    $0.70     $0.75
Preformatted Report Elements       $0.70     $0.75
Rank Elements                      $0.06     $0.07
ALERT (default)                   $36.75    $40.45
ALERT (Monthly)                * $200.00   $220.00
ALERT (Biweekly/twice a month) *  $69.50    $76.40
ALERT (Weekly)                    $36.75    $40.45
ALERT (Daily)                  *  $36.75    $40.45
ALERT (Calendar weekly)        *  $36.75    $40.45
ALERT (Intraday)               *  $36.75    $40.45
* = custom scheduled Alerts only

        <<  Standard  >>  << Subscriber >>
Format    Types   Prints    Types   Prints
     1    $0.00    $0.75    $0.00    $0.83
     2   $13.32   $14.98   $14.66   $16.47
     3   $11.26   $12.81   $12.39   $14.08
     4   $15.38   $17.15   $16.93   $18.86
     5   $15.38   $17.15   $16.93   $18.86
     6    $0.00    $0.75    $0.00    $0.83
     7   $13.32   $14.98   $14.66   $16.47
     8    $0.00    $0.75    $0.00    $0.83
     9   $15.38   $17.15   $16.93   $18.86
    11    $0.00    $0.75    $0.00    $0.83
    22    $2.06    $2.92    $2.27    $3.22
    25    $7.60    $8.88    $8.36    $9.77
    26    $0.80    $1.63    $0.88    $1.79
    27    $2.06    $2.92    $2.27    $3.22
    29    $4.92    $5.97    $5.42    $6.57
    35    $9.66   $11.05   $10.63   $12.16
    36    $0.80    $1.63    $0.88    $1.79
    46    $0.00    $0.75    $0.00    $0.83
    59   $15.38   $17.15   $16.93   $18.86
KWIC95    $0.00       NA    $0.00       NA
KWIC96    $0.00       NA    $0.00       NA

REDIST/COPY Multiplier Table:

      Range      Multiplier
        1-2       1.00
       3-25       1.50
     26-100       3.00
    101-200       4.00
    201-500       6.00
   501-1000       8.00
 1001 or more    10.00

ARCHIVE Multiplier Table:

      Range      Multiplier
       1-25       1.50
     26-200       3.00
    201-500       6.00
   501-1000       8.00
 1001 or more    10.00
Standard = rates for all users except those in Japan
Subscriber = rates for users in Japan