Kenneth E. Lehrke — 12 Patents at Graco

Kenneth E. Lehrke has been granted 12 US patents while listed as an inventor at Graco. The first was granted in 1985 and the most recent in August 2006. Kenneth E. Lehrke ranks #396,045 of 4,157,543 US inventors in our database (top 9.5%). Patent records list Kenneth E. Lehrke in Maple Grove, MN, US.

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
7090474	Diaphragm pump with overfill limiter	Richard D. Hembree	2006-08-15
6899530	Diaphragm pump with a transfer chamber vent with a longitudinal notch on the piston cylinder	Richard D. Hembree	2005-05-31
6568559	Termite control system with multi-fluid proportion metering and batch signal metering	Michelle J. Miller, Scott C. Losey	2003-05-27
6168308	Mechanical proportioner	David M. Pittman, John F. Isais, Vicky J. Peterson, Adam Friedrich	2001-01-02	$6,367,000
6164560	Lawn applicator module and control system therefor	Frederick A. Powers, Timothy L. Sebion, Gary D. Ingle	2000-12-26
5961300	Diaphragm pump plural component dispensing system with integrator	Jan Pitzer	1999-10-05	$3,081,000
5362148	Rotary agitator with concentric suction tube	Gerard L. Lehman, Scott C. Losey	1994-11-08	$631,000
5277494	Fluid integrator	Martin P. McCormick	1994-01-11	$580,000
5145339	Pulseless piston pump	Bruce A. McFadden	1992-09-08	$424,000
4921408	Non-icing quiet air-operated pump	Daniel J. Kvinge, Frederick A. Powers	1990-05-01	$1,184,000
4725713	Electrically heated hose employing a hose simulator for temperature control	—	1988-02-16	$1,271,000
4501952	Electric fluid heater temperature control system providing precise control under varying conditions	—	1985-02-26	$410,000

Kenneth E. Lehrke — 12 Patents

Issued Patents All Time

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