DC

David Jonathan Chalk

Air Products And Chemicals: 12 patents #158 of 1,997Top 8%
📍 Slatington, PA: #4 of 46 inventorsTop 9%
🗺 Pennsylvania: #5,969 of 74,527 inventorsTop 9%
Overall (All Time): #369,490 of 4,157,543Top 9%
13
Patents All Time

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #TitleCo-InventorsDate
12092093 Apparatus and method for cryogenic pump cooldown Steven W. Hoffman, Joseph Perry Cohen 2024-09-17
12031684 System and method for gaseous hydrogen recovery in a hydrogen fueling station Joseph Perry Cohen, David John Farese, Benjamin H. S. Torda 2024-07-09
10883483 Seal assembly for reciprocating compressor 2021-01-05
10876634 Annular sealing assembly Gregory Peter Hupp, Douglas R. Williams, Lance Michael Grimm 2020-12-29
9494281 Compressor assemblies and methods to minimize venting of a process gas during startup operations David John Farese 2016-11-15
8807571 Wear-compensating sealing ring assembly Larry Stein 2014-08-19
7488159 Zero-clearance ultra-high-pressure gas compressor Bharat Bhatt, William Curtis Kottke, Todd Eric Carlson 2009-02-10
7410348 Multi-speed compressor/pump apparatus David John Farese 2008-08-12
7168446 High impact discharge valve Thomas T. Hand, David John Farese 2007-01-30
6530761 Double-acting, two-stage pump Donald Earl Thompson, David John Farese 2003-03-11
6474078 Pumping system and method for pumping fluids Donald Earl Thompson, John Francis Fischl, David John Farese 2002-11-05
6011456 Superconducting magnet split cryostat cryogen ride-through reserve Phillip W. Eckels, Thomas Joseph, Joseph Anthony Schillinger 2000-01-04
5960636 Method and apparatus for precooling a mass prior to immersion in a cryogenic liquid Thomas W. Schuck, Stanley Louis Morton, Xianrui Huang, Lawrence V. Bischke, Shaun Patrick O'Shea 1999-10-05