US 11,808,697 B2
Protein quantitation device
Evan Thrush, Hercules, CA (US); Steven Swihart, Walnut Creek, CA (US); William Strong, El Cerrito, CA (US); Trey Marlowe, San Francisco, CA (US); and Li Lu, Livermore, CA (US)
Assigned to Bio-Rad Laboratories, Inc., Hercules, CA (US)
Filed by Bio-Rad Laboratories, Inc., Hercules, CA (US)
Filed on Jul. 29, 2022, as Appl. No. 17/877,680.
Application 17/877,680 is a continuation of application No. 17/199,312, filed on Mar. 11, 2021, granted, now 11,435,285.
Application 17/199,312 is a continuation of application No. 16/151,732, filed on Oct. 4, 2018, granted, now 10,948,403, issued on Mar. 16, 2021.
Claims priority of provisional application 62/569,065, filed on Oct. 6, 2017.
Prior Publication US 2023/0026156 A1, Jan. 26, 2023
Int. Cl. G01N 21/31 (2006.01); G01N 21/3577 (2014.01); G01N 21/3563 (2014.01)
CPC G01N 21/3103 (2013.01) [G01N 21/3563 (2013.01); G01N 21/3577 (2013.01); G01N 2021/3572 (2013.01); G01N 2201/0686 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A carrier for holding a sample for analysis, the carrier comprising:
a porous membrane having a number of sample loading areas designated thereon, the porous membrane defining a plurality of openings extending through the membrane, wherein each of the sample loading areas is defined by at least some of the plurality of openings;
wherein at least the sample areas are impregnated with a surfactant.