Quellen |
Hoffmann, W. G., 196... Hoffmann, W. G., 1965: Das Wachstum der deutschen Wirtschaft seit der Mitte des 19. Jahrhunderts., Tab. 45, S .268
Wagner-Döbler, R.; 1997: Wachstumszyklen technisch-wissenschaftlicher Kreativität: eine quantitative Studie unter besonderer Beachtung der Mathematik", S.278
Direktauskunft Deutsches Patent- und Markenamt, Referat für Presse- und Öffentlichkeitsarbeit, 80297 München |
(address as of 4/200... (address as of 4/2002)
U.S. Patent and Trademark Office
Information Products Division
Technology Assessment and Forecast Branch
PK3-Suite 441
Washington, DC 20231
tel (703) 306-2600
FAX (703) 306-2737
- recent statistics are obtained from the /U.S. Patent Statistics Report/, March 2002, U.S. Patent and Trademark Office (USPTO), and from the USPTO TAF database
- many of the older statistics are obtained from the /Technology Assessment and Forecast Seventh Report, March 1977/, U.S. Patent and Trademark Office |
Anmerkungen |
1812-1943 Wagner-Döb... 1812-1943 Wagner-Döbler
1950-1959 Hoffmann
1960-2000 Direktauskunft Deutsches Patentamt |
counts of patent gra... counts of patent grants from 1836 to 1842 include design patents
data for 1836 include both the patents granted in that year priorto the effective date of the 1836 Patent Law (July 4, 1836) and those granted in that year after that date
data for 1836 include 599 patents issued prior to July 4, the effective date of the 1836 patent law
"Patents", as used in this table, refers to "patents for inventions", also known as "utility" patents. |