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

Eric Knappenberger — 30 Patents

Micron: 18 patents #988 of 6,374Top 20%
WPWeber-Stephen Products: 10 patents #33 of 136Top 25%
Eastman Kodak: 1 patents #4,972 of 8,114Top 65%
IEItt Manufacturing Enterprises: 1 patents #577 of 1,404Top 45%
Chicago, IL: #259 of 13,327 inventorsTop 2%
Illinois: #2,039 of 84,256 inventorsTop 3%
Overall (All Time): #121,623 of 4,157,543Top 3%
30 Patents All Time
Eric Knappenberger has been granted 30 US patents while listed as an inventor at Micron. The first was granted in 2000 and the most recent in April 2025. Eric Knappenberger ranks #121,623 of 4,157,543 US inventors in our database (top 2.9%). Patent records list Eric Knappenberger in Chicago, IL, US.

Patents per Year

Patents granted per year, 2000 to 2025Bar chart with a peak of 6 patents in 2002.peak 62000: 2 patents20002001: 3 patents2002: 6 patents20022003: 3 patents2004: 3 patents20042005: 1 patents2007: 1 patents20072009: 1 patents2019: 1 patents20192020: 2 patents2022: 1 patents20222023: 2 patents2024: 3 patents20242025: 1 patents2025

Issued Patents All Time

Showing 1–25 of 30 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12267918 Electric grill with current protection circuitry Julio C. Zuleta, Matthew Lerch, Jeffery C. Emmerich 2025-04-01
12137832 Digital power supply Julio C. Zuleta, Matthew Lerch, Jeffery C. Emmerich 2024-11-12
12105572 Digital power supply with wireless monitoring and control Julio C. Zuleta, Matthew Lerch, Jeffery C. Emmerich 2024-10-01
11860240 Wireless control and status monitoring for electric grill with current protection circuitry Julio C. Zuleta, Matthew Lerch, Jeffery C. Emmerich 2024-01-02
11703928 Digital power supply with wireless monitoring and control Julio C. Zuleta, Matthew Lerch, Jeffery C. Emmerich 2023-07-18
11622420 Electric grill with current protection circuitry Julio C. Zuleta, Matthew Lerch, Jeffery C. Emmerich 2023-04-04
11454677 Wireless control and status monitoring for electric grill with current protection circuitry Julio C. Zuleta, Matthew Lerch, Jeffery C. Emmerich 2022-09-27 $5,541,000
10551893 Digital power supply with wireless monitoring and control Julio C. Zuleta, Matthew Lerch, Jeffery C. Emmerich 2020-02-04
10537199 Digital power supply Julio C. Zuleta, Matthew Lerch, Jeffery C. Emmerich 2020-01-21
10524312 Electric grill with current protection circuitry Julio C. Zuleta, Matthew Lerch, Jeffery C. Emmerich 2019-12-31
7557918 Spectral polarimetric image detection and analysis methods and apparatus J. Daniel Newman, Paul P. Lee, Rulon Eugene Simmons, Andre Cropper 2009-07-07 $9,511,000
7271528 Uniform emitter array for display devices 2007-09-18 $885,000
6890446 Uniform emitter array for display devices, etch mask for the same, and methods for making the same 2005-05-10 $1,150,000
6824698 Uniform emitter array for display devices, etch mask for the same, and methods for making the same 2004-11-30 $1,719,000
6682873 Semiconductive substrate processing methods and methods of processing a semiconductive substrate John Michiels, David H. Wells, James J. Alwan 2004-01-27 $3,111,000
6679998 Method for patterning high density field emitter tips Aaron R. Wilson 2004-01-20 $6,427,000
6586144 Mask forming methods and a field emission display emitter mask forming method John Michiels, David H. Wells, James J. Alwan 2003-07-01 $2,959,000
6573023 Structures and structure forming methods John Michiels, David H. Wells, James J. Alwan 2003-06-03 $4,053,000
6537728 Structures, lithographic mask forming solutions, mask forming methods, field emission display emitter mask forming methods, and methods of forming plural field emission display emitters John Michiels, David H. Wells, James J. Alwan 2003-03-25 $1,989,000
6489246 Method for manufacturing charge-coupled image sensors Joseph R. Summa, David L. Losee 2002-12-03 $5,880,000
6464890 Method for patterning high density field emitter tips Aaron R. Wilson 2002-10-15 $3,142,000
6458515 Structures, lithographic mask forming solutions, mask forming methods, field emission display emitter mask forming methods, and methods of forming plural field emission display emitters John Michiels, David H. Wells, James J. Alwan 2002-10-01 $3,166,000
6426233 Uniform emitter array for display devices, etch mask for the same, and methods for making the same 2002-07-30 $7,614,000
6420086 Methods of forming patterned constructions, methods of patterning semiconductive substrates, and methods of forming field emission displays Jianping Yang, David H. Wells 2002-07-16 $4,820,000
6350388 Method for patterning high density field emitter tips Aaron R. Wilson 2002-02-26 $9,328,000