Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
SH

Simon David Hart — 14 Patents

CLControl Techniques Limited: 6 patents #1 of 34Top 3%
YLYasa Limited: 5 patents #2 of 19Top 15%
ETEmerson Climate Technologies: 2 patents #109 of 353Top 35%
NLNidec Control Techniques Limited: 1 patents #6 of 19Top 35%
Newtown, GB: #1 of 14 inventorsTop 8%
Overall (All Time): #332,869 of 4,157,543Top 9%
14 Patents All Time
Simon David Hart has been granted 14 US patents while listed as an inventor at Control Techniques Limited. The first was granted in 2015 and the most recent in October 2023. Simon David Hart ranks #332,869 of 4,157,543 US inventors in our database (top 8.0%). Patent records list Simon David Hart in Newtown, GB.

Patents per Year

Patents granted per year, 2015 to 2023Bar chart with a peak of 3 patents in 2016.peak 32015: 2 patents20152016: 3 patents20162017: 2 patents20172018: 1 patents20182019: 1 patents20192021: 1 patents20212022: 1 patents20222023: 3 patents2023

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11791713 Method and apparatus for cooling one or more power devices Samuel David Ahearn 2023-10-17
11757374 Method and apparatus for generating a three-phase voltage Samuel David Ahearn, Richard Phillips, Tim Woolmer 2023-09-12
11646676 Method and apparatus for generating a three-phase voltage Samuel David Ahearn 2023-05-09
11276622 Inverter arrangement Tim Woolmer, Christopher Stuart Malam, Tom Hillman, Richard Phillips 2022-03-15
10985089 Semiconductor cooling arrangement Tim Woolmer, Christopher Stuart Malam, Graham Law, Francesca Bernardine Bumpus 2021-04-20
10240838 Variable speed compressor control with sound-controlled defrost mode Wayne M. Penn, Jacob A. Groshek 2019-03-26 $31,306,000
9893668 Control system and method Michael Cade, Richard Mark Wain 2018-02-13
9618543 Control system for multi-phase rotary machines 2017-04-11
9614459 Modulation of switching signals in power converters Antony John Webster 2017-04-04
9509222 Power conversion system Stephen Berry, Richard Mark Wain, Dhananjay Dattatray Kapatkar, Dilesh Arvind Raut 2016-11-29
9476626 Variable speed compressor control with lost rotor mitigation Wayne M. Penn, Jacob A. Groshek 2016-10-25 $24,952,000
9300239 Rotor control 2016-03-29
9197139 Rectifier charge rate controller Stephen Berry 2015-11-24
8958222 Modulation of switching signals in power converters 2015-02-17