Patent landscape report on assistive devices for visually and hearing impaired persons



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However, as it has been shown in this landscape, this is more due to the fact that the assistive devices and technologies for visually and hearing impaired persons technology landscape is undergoing a diversification of geography rather than technology, and it is this localization and specialization in visual and hearing device technology that is driving the movement towards more local protection.
Figure 19 shows the number and proportion of activity within the landscape by the stage of patent prosecution reached – with families either only containing applications, at least one granted patent (and likely a mix of both applications and grant) or finally whether the family only contains Chinese utility models – shorter term, limited examination intellectual property rights.

Figure 19 – Bar Graph of prosecution stage reached by patent type.

Figure 19 - Analysis of Assistive Devices and Technologies for Visually And Hearing Impaired Persons Technology Landscape Based on Prosecution Stage Reached and Patent Type; Number of Patent Families containing only applications; Number of patent families containing (at least one) granted patent; Number of patent families with only Chinese Utility Models


Figure 20 shows the average length of time between an application being filed and a granted patent being published in the same jurisdiction.

This chart will typically tend to zero as the date approaches the present, as for recent years only unusually fast-granting patent applications will be present in the analysis. The chart does however serve to show that the typical “patent pending” time period for the visual and hearing device technology collection is just less than 4 years from initial filing to grant publication.



Figure 20 – shows Average Patent Pending Time Period and Date of Publication of Granted Patent

Figure 20 - Average Patent Pending Time Period between Office of First Filing Date and Date of Publication of Granted Patent

The analysis in figure 21 excludes any patent family filed within the last 4 years to avoid a bias towards the fast-granting outlier applications.

Several Asian patent office’s appear to perform best in this view, with patents filed in Hong Kong (Special Administrative Region of the People’s Republic of China), China, Taiwan – Province of China and South Korea taking less than 3 years to achieve granted status. One should bear in mind of course the granting procedure and requirements in each jurisdiction which allows for instance a grant without examining for novelty or inventive step.



The major territories of Japan, the United States and the EPO all appear over 4 years of pendency. Patents filed in the Ukraine show the longest levels of pendency, with granted patents typically taking over 9 years to issue from initial filing.

Figure 21 – chart of average patent pendency times by patent authority

Figure 21 - Average Patent Pendency Time Period; Per Patent Authority; Earliest First Filing to Grant Publication; Excludes patent applications filed since 2008, due to average collection pendency period



Raw data for Figure 21: Hong Kong: 1.13 years, China: 1.41 Years, Taiwan Republic of China: 2.00 years, Republic of Korea: 2.58 years, Republic of Korea: 2.58 years, Belarus: 2.70 years, Russia: 2.73 years, Germany: 2.91 years, Greece: 3.02 years, Spain: 3.12 years, Ireland: 3.15 years, Norway: 3.21 years, Bulgaria: 3.40 years, Monoco: 3.44 years, Netherlands: 3.45 years, Austria: 3.49 years, Phillippines: 3.67 years, Romania: 3.81 years, Belgium: 3.95 years, Czech Republic: 4.09 years, Switzerland: 4.12 years, Portugal: 4.14 years, South Africa: 4.21 years, NewZealand: 4.21 years, Iran: 4.24 years, Singapore: 4.33 years, Finland: 4.36 years, Italy: 4.48 years, Argentina: 4.49years, Czechoslovakia: 4.53 years, EPO: 4.60 years, Denmark: 4.75 years, PCT: 4.91 years, Malaysia: 4.93 years, Japan: 5.06 years, Australia: 5.06 years, Canada: 5.09 years, Israel: 5.10 years, Brazil: 5.19 years, Sweden: 5.28 years, Slovakia: 5.29 years, India: 5.29 years, Mexico: 5.48 years, Luxembourg: 5.66 years, Hungary: 5.89 years, Thailand: 6.40 years and Ukraine: 9.33 years.


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