A statistical analysis was made of the delay between application date and publication date of a sample of US patents. The average delay for US derived applications was 20.66 ± 1.83 months and for foreign derived applications 22.36 ± 1.82 months. Hence the conclusion is that if the US...

The paper describes a study of the overlap of Canadian and U.S. patent literature and journal literature. A random sample of 300 U.S. and 100 Canadian patents published in 1968 were examined. 6.0% of the U.S. patents and 11.0% of the Canadian patents also appeared in the journal literature. 6.1%...

Recent developments in Derwent's patent information services are described. Electrical Patents Index is a new and sophisticated information retrieval service covering subjects of interest to the electrical and electronics industries. Patents Abstracts on Microfiche is a forthcoming service for...

The paper contains an analysis of the patenting activity of pharmaceutical companies in the UK, both the global evolution of pharmaceutical patenting during the years 1951 to 1977 and the fate of the patents published between 1951 and 1961. Further is studied: how much companies vary in their...

This paper describes two databases that Pergamon InfoLine is launching during 1986 -- the U.K. Patent Office database and the U.K. Trademarks database. A brief description of the two databases appeared in this journal last year. The paper is divided in two approximately equal sections -- the...

The article describes the use of bibliometrics (the application of mathematical techniques to the problems of documentation) to the question of the distribution of patents between patentees. The study was performed using the Pergamon InfoLine GET command and was carried out on the INPADOC and...

The author looks at the context of the articles published in World Patent Information's first volume, in 1979, in the light of subsequent developments over the ensuing 25 years. He provides examples of articles from 1979 and from recent years to illustrate his comments. Amongst themes that...

This report describes the results of a piece of research to evaluate the cost to U.K. industry and other organisations of the use of the patent system, and patent information. The report analyses this expenditure under a number of headings, primarily the official fees that must be paid to obtain...

This paper describes an evaluation and test drive of Research Publications International's Patent View, the CD-ROM database of U.S. patents. The paper finds that, though some improvements are necessary and some desirable, the product has the potential to meet a wide range of user needs...