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USPTO Patent Rankings Data through Dec 31, 2025
Home › Rheem Manufacturing › Christopher Day
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Christopher Day — 8 Patents

RMRheem Manufacturing: 3 patents #110 of 360Top 35%
GLGill Corporate Limited: 2 patents #2 of 4Top 50%
AOAmerican Optical: 1 patents #56 of 106Top 55%
MIMks Instruments: 1 patents #255 of 442Top 60%
Colleyville, TX: #61 of 333 inventorsTop 20%
Texas: #19,067 of 125,132 inventorsTop 20%
Overall (All Time): #600,572 of 4,157,543Top 15%
8 Patents All Time
Christopher Day has been granted 8 US patents while listed as an inventor at Rheem Manufacturing. The first was granted in 1980 and the most recent in July 2025. Christopher Day ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Christopher Day in Colleyville, TX, US.

Patents per Year

Patents granted per year, 1980 to 2025Bar chart with a peak of 2 patents in 2024.peak 21980: 1 patents19801986: 1 patents19861989: 1 patents19892023: 1 patents20232024: 2 patents20242025: 2 patents2025

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12347840 Battery-integrated heat pump systems and methods thereto Sivakumar Gopalnarayanan, Yang Zou 2025-07-01
D1060063 Anemometer — 2025-02-04
12173909 Integrated space conditioning and water heating/cooling systems and methods thereto Sivakumar Gopalnarayanan 2024-12-24
D1028749 Anemometer — 2024-05-28
11739952 Integrated space conditioning and water heating/cooling systems and methods thereto Sivakumar Gopalnarayanan 2023-08-29
4877051 Flow controller — 1989-10-31
4571547 Adaptive signal detection system especially for physiological signals such as the R waves of ECG signals, which is desensitized to artifacts — 1986-02-18 $59,000
4187858 Method and apparatus for orienting the display of information from a recirculating memory Robert A. McEachern 1980-02-12

Frequent Collaborators

Sivakumar Gopalnarayanan3 shared
Robert A. McEachern1 shared
Yang Zou1 shared

Nearby-Ranked Inventors

Suryatej Gundavelli8
Hajime Yoshizawa8
Takahisa TATEKAWA8
Hye-Jin GONG8
Yang Ji8
Koichi Sekimizu8
Sandeep Rekhi8
Tejas Pradip Rode8
Jonatan Hörder8