TIME IN PURGATORY: DETERMINANTS OF THE GRANT LAG FOR U.S. PATENT APPLICATIONS
| Year of publication: |
2003
|
|---|---|
| Authors: | Popp, David ; Juhl, Ted ; Johnson, Daniel K.N. |
| Published in: |
Working paper / National Bureau of Economic Research, Inc. - Cambridge, Mass, ISSN 0898-2937, ZDB-ID 12239057. - 2003, 9518
|