Patent documents are special documents.
Special documents generally include seven categories: conference documents, scientific and technological reports, patent documents, dissertations, standard documents, scientific and technological archives, and government publications.
Special literature has distinctive characteristics, extensive content, large quantity, and high reference value. It is a very important information source and plays an important role in medical literature retrieval.
Extended information
Modern documents are divided according to the form of carrier:
(1) Printed documents: paper materials are used as carriers and printing is used as records The document form formed by means is the main body of the entire document at present, and it is also a traditional document form with a long history. Its characteristic is that it does not require special equipment and can be carried with you and read anywhere and at any time. However, the storage density is low, the volume is large, and it takes up a lot of space, making it inconvenient to save.
(2) Microform document: A form of document formed by using photosensitive materials as carriers and photography as recording means, including microfilm, microfilm, microfilm cards, etc. The advantages of microform documents are small size, easy collection and preservation, and low price, but reading requires more complex reading equipment to support it.
(3) Audiovisual documents: A form of documents that uses magnetic and photosensitive materials as media to record sound, images and other information. Its advantage is that it is quick to access, its sound can be heard, its shape can be seen, and it is easy to understand.
(4) Electronic digital documents: A document form that is produced with the development of computer technology and network technology and records information with computer processing technology as the core. This kind of document has large storage capacity, fast and flexible retrieval speed, and is easy to use. Electronic digital documents are further divided into CD-ROM documents and network documents.