David C. Hahn — 7 Patents at Mainstream Engineering

David C. Hahn has been granted 7 US patents while listed as an inventor at Mainstream Engineering. The first was granted in 2014 and the most recent in September 2025. David C. Hahn ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list David C. Hahn in Heidelberg, FL, DE.

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #	Title	Co-Inventors	Date
12414242	Method for ink jet printing of a substrate	David Volk, Jan Schönefeld, Carsten Schimansky	2025-09-09
11330719	Method for producing a labeled printed circuit board	David Volk, Jan Schönefeld, Carsten Schimansky	2022-05-10
10852044	Simple low-cost retrofit device and method to replace a variable air flow electronically commutated motor with a permanent split capacitor motor capable of operating at multiple speed settings	Dana L. Elliott, Luke L. Falls, Robert P. Scaringe	2020-12-01
10605495	Elegantly simple low-cost retrofit method and system for replacing a constant torque electronically commutated motor with a fix-speed permanent split capacitor motor	Luke L. Falls, Dana L. Elliot, Robert P. Scaringe	2020-03-31
9417005	Retrofit device and method to improve humidity control of vapor compression cooling systems	Robert Paul Roth, Robert P. Scaringe	2016-08-16
9207001	Retrofit device to improve vapor compression cooling system performance by dynamic blower speed modulation	Robert Paul Roth, Robert P. Scaringe	2015-12-08
8779362	Infrared acid detector and method	Ted J. Amundsen	2014-07-15

David C. Hahn — 7 Patents

Issued Patents All Time

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