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The new UK data records 2425 secrecy orders still in place.
Patents are documents which offer protection to inventors to exploit their invention in a particular country for a specified length of time (20 years in the UK).
The Public Record office and the British Government tend to enforce these marks and registration numbers.
Endnote®: References to patents can be sent to Endnote or Endnote Web from the Web of Knowledge™ database, which indexes over 23,000,000 patents including European and US patents.Note that the registration number does not form part of the mark.The centre is occupied by the abbreviation There are two ranges of year codes; 1842-1867 & 1868-1883.The information for this page was compiled with the assistance of the British Public Record Office, and the British Designs Registry Office. Their help, and permission to use the data, is certainly appreciated.During the period 1842-1883 the British Patent Office issued a diamond mark along with the registration number when a design was registered.