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USPTO Patent Rankings Data through Dec 31, 2025
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Alfons Knapp — 66 Patents

MAMasco: 40 patents #1 of 184Top 1%
MIMasco Corporation Of Indiana: 17 patents #25 of 235Top 15%
GAGevipi A.G.: 5 patents #1 of 2Top 50%
Bad Herrenalb, DE: #1 of 29 inventorsTop 4%
Overall (All Time): #32,599 of 4,157,543Top 1%
66 Patents All Time
Alfons Knapp has been granted 66 US patents while listed as an inventor at Masco. The first was granted in 1981 and the most recent in June 2010. Alfons Knapp ranks #32,599 of 4,157,543 US inventors in our database (top 0.78%). Patent records list Alfons Knapp in Bad Herrenalb, DE.

Issued Patents All Time

Showing 1–25 of 66 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7740183 Thermostatic mixer with device for dynamic regulation of a water flow 2010-06-22 $39,740,000
7726344 Device for dynamic control of a water flow 2010-06-01 $41,473,000
7681597 Thermostatic mixer with device for dynamic regulation of a water flow 2010-03-23 $21,231,000
7681598 Device for dynamic control of a water flow 2010-03-23 $21,231,000
7681803 Perfected device for taking showers at alternating temperatures 2010-03-23 $21,231,000
7063106 Cartridge for a mixing valve and process for its instrumental assembly 2006-06-20 $43,569,000
6823892 Automatic valve for the stabilization of a thermostatic mixing device 2004-11-30 $26,978,000
6708895 Flow rate regulator to reduce variation in temperature of water drawn from a mixing device 2004-03-23 $52,837,000
6557785 Showerhead for delivering an aerated water stream by use of the venturi effect 2003-05-06 $85,254,000
6341731 Thermostatic mixing valve with sequential manual control 2002-01-29 $80,916,000
6276003 Adjustable support for a shower 2001-08-21 $109,451,000
6270022 Multiple jet shower with aeration device 2001-08-07 $116,922,000
6263919 Sequential cartridge for a mixing device, exchangeable for thermostatic cartridge 2001-07-24 $111,600,000
6145757 Shower head with switching of spray mode 2000-11-14 $96,506,000
6135152 Pair of hard material plates for a sequential mixing valve 2000-10-24
5971285 Thermostatically controlled mixing valve 1999-10-26 $110,811,000
5931374 Flow control ports for a thermostatic mixing faucet 1999-08-03 $94,831,000
5904291 Thermostatic faucet mixing valve 1999-05-18 $89,279,000
5901732 Pressure balancing device 1999-05-11 $90,780,000
5816289 Device for dampening vibration and noise in hydraulic installations 1998-10-06 $45,444,000
5813435 Single handle mixing valve with an improved ball valve 1998-09-29 $44,039,000
5664603 Mixer valve having a ball valve element and upper sealing gasket 1997-09-09 $38,136,000
5615709 Mixer valve having a ball valve element housed in a cartridge 1997-04-01 $16,862,000
5613521 Mixing valve having a ball valve cartridge and a lower insert member 1997-03-25 $15,921,000
5613520 Device for dampening vibration and noise in hydraulic installations 1997-03-25 $15,921,000