US2021317389A1PendingUtilityA1

Chemical product for rapid removal of food burned on to the surfaces of cooktops

Assignee: QUAN WILLIAMPriority: Apr 14, 2020Filed: Mar 30, 2021Published: Oct 14, 2021
Est. expiryApr 14, 2040(~13.7 yrs left)· nominal 20-yr term from priority
Inventors:William Quan
B08B 3/08C11D 3/046B08B 3/10C11D 3/0057C11D 3/042C11D 3/04C11D 3/02C11D 7/08C11D 7/10C11D 11/0023C11D 11/0035C11D 2111/18C11D 2111/14
67
PatentIndex Score
0
Cited by
0
References
0
Claims

Abstract

The chemical formulations use chemicals that are use or have been used for other cleaning purposes such as rust stains, but not for glass or glass-ceramic cooktop surfaces. In an embodiment for cleaning glass or glass-ceramic surfaces, percentages of active ingredients, such as either hydrofluoric acid (HF) or ammonium bifluoride (NH4HF2), can be formulated at an about an order lower in concentration by weight than those formulations originally used for removing rust stains (e.g. using the same chemicals for removing rust stains but with a lower concentration for different uses, wherein a different use includes removal of food burned onto cooktops). Additionally, even at the lower concentrations of the active ingredient the physical effort involved and the time for cleaning/removal are much less than with commercially available cleaning products.

Claims

exact text as granted — not AI-modified
That which is claimed is: 
     
         1 . A composition for removing food burned onto a surface, comprising:
 a chemical formulation including about 2.5% to about 0.05% by weight of hydrofluoric acid (HF);   wherein the composition comprising the chemical formulation including about 2.5% or about 0.5% by weight of hydrofluoric acid (HF) provides about 100% efficacy for removing food burned onto the surface, or;   wherein the composition comprising the chemical formulation including about 0.05% by weight of hydrofluoric acid (HF) provides about 50% efficacy for removing burned food onto the surface.   
     
     
         2 . The composition of  claim 1  wherein the surface includes glass, ceramic, or glass-ceramic. 
     
     
         3 . The composition of  claim 1  wherein removing the food burned onto the surface is completed in two minutes or less. 
     
     
         4 . A composition for removing food burned onto a surface, comprising:
 a chemical formulation including about 3.0% to about 0.05% by weight of ammonium bifluoride (NH4HF2);   wherein the composition comprising the chemical formulation including about 3.0% or about 0.5% by weight of ammonium bifluoride (NH4HF2) provides about 100% efficacy for removing food burned onto the surface, or;   wherein the composition comprising the chemical formulation including about 0.05% by weight of ammonium bifluoride (NH4HF2) provides about 50% efficacy for removing burned food onto the surface.   
     
     
         5 . The composition of  claim 4  wherein the surface includes glass, ceramic, or glass-ceramic. 
     
     
         6 . The composition of  claim 4  wherein removing the food burned onto the surface is completed in two minutes or less. 
     
     
         7 . The composition of  claim 4  wherein by a comparison weight basis of ammonium bifluoride (NH4HF2) with hydrofluoric acid (HF), and based on a pH determination, the composition comprising the ammonium bifluoride (NH4HF2) removes more of the food burned onto the surface when compared to a chemical formulation including the hydrofluoric acid (HF). 
     
     
         8 . A composition for removing food burned onto a surface, comprising:
 a chemical formulation including ammonium bifluoride (NH4HF2);   wherein the composition comprising ammonium bifluoride (NH4HF2) provides efficacy for removing food burned onto the surface.   
     
     
         9 . The composition of  claim 8  wherein the surface includes glass, ceramic, or glass-ceramic. 
     
     
         10 . The composition of  claim 8  wherein removing the food burned onto the surface is completed in two minutes or less.

Join the waitlist — get patent alerts

Track US2021317389A1 — get alerts on status changes and closely related new filings.

We store only your email — no account needed. See our privacy policy.