Ask Patents Meta
to customize your list.
more stack exchange communities
Start here for a quick overview of the site
Detailed answers to any questions you might have
Discuss the workings and policies of this site
tag has no wiki summary.
Secure telephone-based payments - Patent application - Prior art request
US patent application 2220110228919 (USPTO link) seems to be trying to patent an on/off switch for DTMF audio on telephone networks. The key claims are these (effectively the first three): A ...
Jul 24 '13 at 9:31
newest call-center questions feed
Search patents with Google
Hot Network Questions
At what point is it most advantageous to cease depositing into a 401k?
Translation of the expression "by the way"
Is there among first 100000001 Fibonacci numbers one that ends with 0000?
Why does an aircraft leave a white smoke trail?
Who was the first Headmaster of Hogwarts?
Output all numbers below certain number containing certain digits
What is the difference between robbing and stealing?
What to do about a un-dissolved substance?
Combinatorial products of unique primes
How is the real-time priority of a process set by default?
Quality vs. Quantity for Rocket Engines
Subdivide loop at custom position without stretching the texture
write() system call ignores file permissions
Mathematica spitting code back when using Resolve over a large range of interest
How do I remove spaces from shell variables?
Set some horizontal border in my table
Can Ink Treader Nephilim's Electrolyze copies target players?
Why does integration of acceleration data create a slope?
Walk up and talk to random people at academic conferences - is that appropriate?
What was bardic performance like in the D&D Next playtest?
Monitor which website my applications are trying to connect to
Allow, Allow Of, Allow For
Whose underwear is this?
more hot questions
Life / Arts
Culture / Recreation
TeX - LaTeX
Unix & Linux
Ask Different (Apple)
Geographic Information Systems
Science Fiction & Fantasy
Seasoned Advice (cooking)
Personal Finance & Money
English Language & Usage
Mi Yodeya (Judaism)
Cross Validated (stats)
Theoretical Computer Science
Meta Stack Exchange
Stack Overflow Careers
site design / logo © 2014 stack exchange inc; user contributions licensed under
cc by-sa 3.0