Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Number of patents filed, organized by decade.
| Year | US Patents | European Patents | Chinese Patents | International |
|---|---|---|---|---|
| 1988–1997 | 57 | 1 | 0 | 1 |
| 1998–2007 | 147 | 1 | 2 | 1 |
| 2008–2017 | 276 | 4 | 47 | 177 |
Note: The term “touch sensor,” was used to query the Google patents search engine to collect these data. All kinds of patent types such as, design, utility, plant, defensive publications and additional improvements etc., are included.
