DB

Dean A. Bell

WA Welch Allyn: 9 patents #71 of 552Top 15%
📍 Marcellus, NY: #12 of 71 inventorsTop 20%
🗺 New York: #16,265 of 115,490 inventorsTop 15%
Overall (All Time): #584,478 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
7218046 Unitized chemically etched tungsten electrode Timothy D. Russell 2007-05-15
7101245 Stable electrode design and method Timothy D. Russell 2006-09-05
6774565 Electrode surface treatment process 2004-08-10
6693381 Lamp and fan thermal control by directed air flow Richard A. Mechowski 2004-02-17
6626725 Electrode treatment surface process for reduction of a seal cracks in quartz 2003-09-30
6498423 Lamp thermal control by directed air flow Richard A. Mechowski 2002-12-24
5910707 Tungsten halogen lamp 1999-06-08
5886466 Miniature two-pin tungsten halogen lamp Raymond Alan Dean 1999-03-23
5359262 Sub-miniature tungsten halogen lamp with major inert gas and minor halide gas constitutes John Harkins 1994-10-25