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David M. Berchowitz — 31 Patents

GCGlobal Cooling: 20 patents #1 of 9Top 15%
SUSunpower: 6 patents #106 of 453Top 25%
MTMechanical Technology: 2 patents #27 of 79Top 35%
Coca-Cola: 2 patents #441 of 1,471Top 30%
OUOhio University: 1 patents #95 of 205Top 50%
TWTwinbird: 1 patents #19 of 35Top 55%
Athens, OH: #3 of 190 inventorsTop 2%
Ohio: #1,689 of 73,341 inventorsTop 3%
Overall (All Time): #115,823 of 4,157,543Top 3%
31 Patents All Time
David M. Berchowitz has been granted 31 US patents while listed as an inventor at Global Cooling. The first was granted in 1983 and the most recent in July 2024. David M. Berchowitz ranks #115,823 of 4,157,543 US inventors in our database (top 2.8%). Patent records list David M. Berchowitz in Athens, OH, US.

Issued Patents All Time

Showing 1–25 of 31 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12038214 Method for improving gas bearing function at low thermal cooling power Ivan Niell Deetlefs 2024-07-16
11976864 Dynamic frequency tuning for driving a free-piston gamma-type Stirling heat-pump at minimum electrical power input or maximum thermal cooling power depending upon current thermal conditions — 2024-05-07
11460325 Method for and control system with piston amplitude recovery for free-piston machines — 2022-10-04
10775091 Energy efficient biological freezer with vial management system — 2020-09-15
10718558 Independent auxiliary thermosiphon for inexpensively extending active cooling to additional freezer interior walls Todd Richards 2020-07-21
10544978 Energy efficient biological freezer with vial management system — 2020-01-28
10329822 Door latch with opening and closing mechanical advantage — 2019-06-25
9587873 Energy efficient biological freezer with vial management system — 2017-03-07
8752375 Free-piston stirling machine in an opposed piston gamma configuration having improved stability, efficiency and control — 2014-06-17
8713934 Lubricant free, reduced mass, free-piston, Stirling machine having reciprocating piston drivingly linked to rotary electromagnetic transducer moving in rotational oscillation — 2014-05-06
8671677 Gamma type free-piston stirling machine configuration — 2014-03-18
8615993 Bearing support system for free-piston stirling machines Yong-Rak Kwon 2013-12-31
8011183 Resonant stator balancing of free piston machine coupled to linear motor or alternator — 2011-09-06
7784184 Involute foil regenerator method Neill Lane, Todd Cale, James Gary Wood 2010-08-31
7692339 Stirling cycle engine Mamoru Saito 2010-04-06
7171811 Multiple-cylinder, free-piston, alpha configured stirling engines and heat pumps with stepped pistons Yong-Rak Kwon 2007-02-06
7073567 Condenser evaporator and cooling device — 2006-07-11
7075292 Apparatus for determining free piston position and an apparatus for controlling free piston position Robert Lee Mash, II 2006-07-11
6991023 Involute foil regenerator Neill Lane, Todd Cale, James Gary Wood 2006-01-31 $6,096,000
6701721 Stirling engine driven heat pump with fluid interconnection — 2004-03-09
6550255 Stirling refrigeration system with a thermosiphon heat exchanger Arthur G. Rudick 2003-04-22 $120,850,000
6549408 CPU cooling device using thermo-siphon — 2003-04-15
6422025 Vibrationally isolated stirling cooler refrigeration system Arthur G. Rudick, Dale E. Kiikka 2002-07-23 $357,306,000
5988994 Angularly oscillating, variable displacement compressor — 1999-11-23
5642622 Refrigerator with interior mounted heat pump Dale E. Kiikka 1997-07-01

Nearby-Ranked Inventors

Harald Haas31
Karsten Schmidt31
Mark Selker31
Victor Brouk31
Seiji Nakano31
Niki Tæstensen31
Christopher Kampf31
Christopher L. Wood31
Lina Zhang31