Russell J. Welsh — 9 Patents at Control Data

Russell J. Welsh has been granted 9 US patents while listed as an inventor at Control Data. The first was granted in 1985 and the most recent in December 1994. Russell J. Welsh ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Russell J. Welsh in Toronto, ON, CA.

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #	Title	Co-Inventors	Date
5374951	Method and system for monitoring television viewing	—	1994-12-20
4958371	Method and apparatus for determining when a telephone handset is off-hook	Joseph A. Damoci, Matthew F. Kern, John D. Fourdraine	1990-09-18
4955070	Apparatus and method for automatically monitoring broadcast band listening habits	John D. Fourdraine	1990-09-04
4857999	Video monitoring system	—	1989-08-15
4829558	System and device for data transmission, and related method	—	1989-05-09
4816904	Television and market research data collection system and method	William J. McKenna, Kenneth W. Silvers, Rand B. Nickerson, Harold R. Walker, Joseph A. Cullity +1 more	1989-03-28
4658290	Television and market research data collection system and method	William J. McKenna, Kenneth W. Silvers, Rand B. Nickerson, Harold R. Walker, Joseph A. Cullity +1 more	1987-04-14
4566030	Television viewer data collection system	Rand B. Nickerson	1986-01-21
4546382	Television and market research data collection system and method	William J. McKenna, Kenneth W. Silvers, Rand B. Nickerson, Harold R. Walker, Joseph A. Cullity +1 more	1985-10-08

Russell J. Welsh — 9 Patents

Issued Patents All Time

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