IDiyas

For the Inventor, By the Inventor

Hebron, IL, United States of America

Filtertek Inc.


USPTO Granted Patents = 52



Trademarks = 1

Forward Citations = 2,090

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42 inventors (with patents filed for the assignee):

goldMedal Hayden L Leason (9 out of 9 patents)

silverMedal Ricky R Ruschke (6 out of 6 patents)

bronzeMedal Rick R Ruschke (6 out of 6 patents)

4.  Jan W M Mijers (5 out of 6 patents)

5.  Ralph L Davis (5 out of 6 patents)

6.  Edward Kandel (4 out of 4 patents)

7.  John A Leahey (4 out of 4 patents)

8.  Andrew J Boast (4 out of 4 patents)

9.  Thomas A Cain (4 out of 4 patents)

10.  Ronald J Kay (3 out of 7 patents)

11.  Antonio Chiga (3 out of 5 patents)

12.  Michael Leonhard (2 out of 6 patents)

13.  Brendan Hogan (2 out of 18 patents)

14.  Mark A Kinsley (2 out of 2 patents)

15.  Steven B McGaw, Jr (2 out of 2 patents)


Core Competencies:
Fluid Handling Devices
Valve Apparatus
Respiratory Device Connection
Check Valves
Bacterial Retentive Filters
Filter Manufacturing Processes
Needleless Access Devices
Intravenous Filters
Sump Filters
Air Eliminators
Fuel Tank Filters
Plastic Components with O-Ring Retainers

52 patents:

1. 8038123 - Fluid handling device and method of making same (2011-10-18),
2. 7997293 - Valve apparatus, combination filter valve assemblies and devices, systems, and methods including the same (2011-08-16),
3. 7717116 - Apparatus for connecting a respiratory device with a patient (2010-05-18),
4. 7673653 - Check valve (2010-03-09),
5. 7520489 - Fluid handling device and method of making same (2009-04-21),
6. 7516765 - Air vent foil cutter (2009-04-14),
7. 7360556 - Check valve (2008-04-22),
8. 7354470 - Multiple retainer bridge (2008-04-08),
9. D564092 - Valve for fluids, especially for the medical technique (2008-03-11),
10. 7306768 - Filter for medical and laboratory use, especially for blood analysis and the like (2007-12-11),
11. 7282140 - Sump filter with filter element cartridge (2007-10-16),
12. D541935 - Valve for fluids, especially for the medical technique (2007-05-01),
13. 7141097 - Bacterial retentive, air venting, intravenous filter (2006-11-28),
14. 7083722 - Filter manufacturing process using a combined welding and cutting step (2006-08-01),
15. 7041217 - Filter rings (2006-05-09),
Filtertek Inc. is a leading global provider of engineered filtration products and solutions. With over 50 years of experience, Filtertek delivers innovative and reliable filtration solutions for a wide range of industries including medical, pharmaceutical, automotive, and consumer goods. Their diverse product portfolio includes custom filter solutions, membrane technologies, venting solutions, and syringe filters, among others. Filtertek is committed to delivering high-quality products that exceed customer expectations and contribute to a cleaner, healthier, and safer world.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 2 2025

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52 Patents

#1 in Hebron, IL

#372 in Illinois

#6,532 in US

#13,131 in the World

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Hebron, IL, United States of America

Filtertek Inc.

Forward Citations = 2,090

42 inventors:

goldMedal Hayden L Leason (9 out of 9 patents)

silverMedal Ricky R Ruschke (6 out of 6 patents)

bronzeMedal Rick R Ruschke (6 out of 6 patents)

4.  Jan W M Mijers (5 out of 6 patents)

5.  Ralph L Davis (5 out of 6 patents)

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