Inventor · disambiguated record
David A. Kiewit
Also filed as: KIEWIT DAVID A
9 granted patents·2,659 citations·filing 1976–1995
93Inventor score
Top patents by PatentIndex Score
9 records- 0198US4876736AMethod and apparatus for determining channel reception of a receiverNIELSEN A C CO·Filed 1987·Granted Oct 24, 1989·336 cites·38 claims
- 0298US4697209AMethods and apparatus for automatically identifying programs viewed or recordedNIELSEN A C CO·Filed 1984·Granted Sep 29, 1987·929 cites·108 claims
- 0396US4930011AMethod and apparatus for identifying individual members of a marketing and viewing audienceNIELSEN A C CO·Filed 1988·Granted May 29, 1990·427 cites·19 claims
- 0496US4644509AUltrasonic audience measurement system and methodNIELSEN A C CO·Filed 1986·Granted Feb 17, 1987·158 cites·22 claims
- 0595US5737025ACo-channel transmission of program signals and ancillary signalsNIELSEN MEDIA RES INC·Filed 1995·Granted Apr 7, 1998·261 cites·34 claims
- 0686US5331544AMarket research method and system for collecting retail store and shopper market research dataNIELSEN A C CO·Filed 1992·Granted Jul 19, 1994·443 cites·22 claims
- 0782US5040409ASprinkler alarmKIEWIT DAVID A·Filed 1990·Granted Aug 20, 1991·51 cites·14 claims
- 0881US4107626ADigital output force sensor using surface acoustic wavesGOULD INC·Filed 1976·Granted Aug 15, 1978·33 cites·7 claims
- 0945US5662345AWheelchair wheel cambering apparatusFiled 1995·Granted Sep 2, 1997·21 cites·13 claims
Join the waitlist — get patent alerts
Get an alert when David A. Kiewit files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →