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USPTO Patent Rankings Data through Dec 31, 2025
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David A. Southwick — 18 Patents

Delphi Technologies: 16 patents #125 of 4,124Top 4%
General Motors: 2 patents #6,303 of 18,328Top 35%
Lockport, NY: #10 of 276 inventorsTop 4%
New York: #7,989 of 115,490 inventorsTop 7%
Overall (All Time): #245,716 of 4,157,543Top 6%
18 Patents All Time
David A. Southwick has been granted 18 US patents while listed as an inventor at Delphi Technologies. The first was granted in 2001 and the most recent in August 2017. David A. Southwick ranks #245,716 of 4,157,543 US inventors in our database (top 5.9%). Patent records list David A. Southwick in Lockport, NY, US.

Issued Patents All Time

Showing 1–18 of 18 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9728790 Fuel cell stack bus bar assembly systems and methods David A. Martinchek 2017-08-08 $32,250,000
9225033 Fuel cell stack compression system having integrated vehicle mounts David A. Martinchek 2015-12-29 $8,852,000
7484555 Heat exchanger assembly Henry Earl Beamer 2009-02-03
7260893 Method of attaching a transmission oil cooler to an aluminum tank Chris Calhoun, Terry Joseph Hunt, Karl Paul Kroetsch, Krzysztof Wawrocki, Khalid Moutamid +2 more 2007-08-28
7213412 Condenser with integral receiver and capable of upflow operation Scott Kent, Lawrence Scherer 2007-05-08
7152669 End cap with an integral flow diverter Karl Paul Kroetsch 2006-12-26
7147040 Heat exchanger with tank utilizing integral positioning guides Chris Calhoun, Terry Joseph Hunt, Karl Paul Kroetsch, Krzysztof Wawrocki, Khalid Moutamid +2 more 2006-12-12
7117927 Snap-on mounting bracket for heat exchangers Scott Kent 2006-10-10
7059050 One piece integral reinforcement with angled end caps to facilitate assembly to core Chris Calhoun, Terry Joseph Hunt, Karl Paul Kroetsch, Krzysztof Wawrocki, Khalid El Moutamid +2 more 2006-06-13
7036569 End cap with integral partial reinforcement Karl Paul Kroetsch, David W. Patterson 2006-05-02
7024884 Condenser for an air conditioning system Scott Kent, Maciej Kozikowski, Krzysztof Wawrocki, Christopher Alfred Fuller 2006-04-11
7007743 Header tank with integral mounting flange Chris Calhoun, Terry Joseph Hunt, Karl Paul Kroetsch, Krzysztof Wawrocki, Khalid El Moutamid +2 more 2006-03-07
6904770 Multi-function condenser John Paul Telesz, Edward D. Pettitt, Scott Kent 2005-06-14 $3,595,000
6901992 Fastenerless mounting bracket for heat exchangers Scott Kent 2005-06-07 $2,986,000
6691767 Plastic attachment bracket for metal heat exchanger tank Scott Kent 2004-02-17 $1,504,000
6513579 Post braze heat exchanger mounting and support brackets Scott Kent 2003-02-04 $4,280,000
6446857 Method for brazing fittings to pipes Scott Kent 2002-09-10 $6,404,000
6237677 Efficiency condenser Scott Kent, Mohinder Singh Bhatti 2001-05-29 $46,479,000