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USPTO Patent Rankings Data through Dec 31, 2025
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Christopher Merkl — 14 Patents

JTJohnson Controls Technology: 11 patents #100 of 2,110Top 5%
JLJohnson Controls Tyco Ip Holdings Llp: 2 patents #253 of 843Top 35%
Milwaukee, WI: #152 of 2,770 inventorsTop 6%
Wisconsin: #3,196 of 40,088 inventorsTop 8%
Overall (All Time): #332,869 of 4,157,543Top 9%
14 Patents All Time
Christopher Merkl has been granted 14 US patents while listed as an inventor at Johnson Controls Technology. The first was granted in 2017 and the most recent in November 2025. Christopher Merkl ranks #332,869 of 4,157,543 US inventors in our database (top 8.0%). Patent records list Christopher Merkl in Milwaukee, WI, US.

Patents per Year

Patents granted per year, 2017 to 2025Bar chart with a peak of 4 patents in 2021.peak 42017: 1 patents20172019: 1 patents20192020: 1 patents20202021: 4 patents20212023: 2 patents20232024: 3 patents20242025: 2 patents2025

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12474417 Systems and methods for controlling super capacitor charge voltage to extend super capacitor life Mattia Lovati, George J. Dietz, Gary A. Romanowich, Kevin A. Weiss 2025-11-18
12429240 Systems and methods for configuring and communicating with HVAC devices Daniel R. Rumler, Steven L. Whitsitt, Robert K. Alexander, Gary A. Romanowich, Bernard P. Clement +1 more 2025-09-30
12098854 Systems and methods for configuring and communicating with HVAC devices Robert K. Alexander, Gary A. Romanowich, Bernard P. Clement, Kevin A. Weiss 2024-09-24
12034497 Building device with near field communication circuit Daniel R. Rumler, Steven L. Whitsitt, Robert K. Alexander, Gary A. Romanowich, Bernard P. Clement +1 more 2024-07-09
11870280 Systems and methods for controlling super capacitor charge voltage to extend super capacitor life George J. Dietz, Gary A. Romanowich, Kevin A. Weiss 2024-01-09 $33,992,000
11774121 Systems and methods for configuring and communicating with HVAC devices Robert K. Alexander, Gary A. Romanowich, Bernard P. Clement, Kevin A. Weiss 2023-10-03
11566805 Integrated smart actuator and valve device applications Kirk H. Drees, Herbert J. Doll, Gerald A. Duenkel, Marcello Passoni, Abu Bakr Khan +7 more 2023-01-31 $11,393,000
11121741 Systems and methods for configuring and communicating with HVAC devices Daniel R. Rumler, Steven L. Whitsitt, Robert K. Alexander, Gary A. Romanowich, Bernard P. Clement +1 more 2021-09-14
11029048 Systems and methods for configuring and communicating with HVAC devices Robert K. Alexander, Gary A. Romanowich, Bernard P. Clement, Kevin A. Weiss 2021-06-08
11022332 Systems and methods for configuring and communicating with hvac devices Robert K. Alexander, Gary A. Romanowich, Bernard P. Clement, Kevin A. Weiss 2021-06-01
11018720 Wireless sensor with near field communication circuit Daniel R. Rumler, Steven L. Whitsitt, Robert K. Alexander, Gary A. Romanowich, Bernard P. Clement +1 more 2021-05-25
10684029 Systems and methods for configuring and communicating with HVAC devices Robert K. Alexander, Gary A. Romanowich, Bernard P. Clement, Kevin A. Weiss 2020-06-16
10291292 Wireless sensor with near field communication circuit Daniel R. Rumler, Steven L. Whitsitt, Robert K. Alexander, Gary A. Romanowich, Bernard P. Clement +1 more 2019-05-14
9732977 Systems and methods for configuring and communicating with HVAC devices Robert K. Alexander, Gary A. Romanowich, Bernard P. Clement, Kevin A. Weiss 2017-08-15

Frequent Collaborators

Kevin A. Weiss14 shared
Gary A. Romanowich14 shared
Bernard P. Clement11 shared
Robert K. Alexander11 shared
Daniel R. Rumler5 shared
Steven L. Whitsitt5 shared

Nearby-Ranked Inventors

Ke PAN14
Naor Radami14
Jason Harris14
Gwangjae Jeon14
Masao Zen14
Yoshihiro YAMASAKI14
Sanjay Vakil14
Samuel Bartlett14
Taketoshi Okuno14