NPD Research, Inc.

Patent Owner

Watch Compare Add to Portfolio

Stats

Details

Patent Activity in the Last 10 Years

Technologies

  • No Technology to Display

Top Patents (by citation)

Upgrade to the Professional Level to View Top Patents for this Owner. Learn More

Recent Publications

  • No Recent Publications to Display

Recent Patents

  • No Recent Patents to Display

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5023929 Audio frequency based market survey methodExpiredSep 15, 88Jun 11, 91[H04N, H04B]
4954699 Self-administered survey questionnaire and methodExpiredApr 13, 88Sep 04, 90[G06K]
4912466 Audio frequency based data capture tabletExpiredSep 15, 88Mar 27, 90[G06F]
4603232 Rapid market survey collection and dissemination methodExpiredSep 24, 84Jul 29, 86[H04M]
RE31951 Market survey data collection methodExpiredMar 07, 84Jul 16, 85[G06F]
4355372 Market survey data collection methodExpiredDec 24, 80Oct 19, 82[G06F]

Top Inventors for This Owner

Upgrade to the Professional Level to View Top Inventors for this Owner. Learn More

We are sorry but your current selection exceeds the maximum number of comparisons () for this membership level. Upgrade to our Level for up to -1 comparisons!

We are sorry but your current selection exceeds the maximum number of portfolios (0) for this membership level. Upgrade to our Level for up to -1 portfolios!.