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2
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1answer
87 views
Is it helpful to use “invention submission companies” to ensure the securing of a patent?
Is it helpful to use "invention submission companies" to ensure the securing of a patent? What other services might they provide?
1
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2answers
75 views
How could a patent have been issued for a composite knife blade?
Turns out there's a US 2008/0250656 A1 patent for a composite knife blade - a knife blade made of two pieces - one containing the area near cutting edge and the other containing the rest of the blade ...
0
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0answers
84 views
What is differences between us8216392 and us7445677? [duplicate]
Possible Duplicate:
is there an infringement between this patent and lufthansa us8216392 patent?
us8216392 patent produced "cyclean" you can google for images and us7445677 drawings are ...
2
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1answer
145 views
Idea that is similar but not identical to an existing patent: how do I evaluate the novelty?
I came up with an idea similar to this one (us20070091093) around the same time and I've read this patent pretty thoroughly. They cover a large part of what my idea is, but I have differences in ...
4
votes
1answer
154 views
Can a patent be refiled after 20 years with slight changes and additions?
In the process of seeking a patent on a domino-style game, I found a game with a lot of physical likeness to mine. That game was patented around 1950. Can I still file a patent since that patent has ...
11
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1answer
1k views
Prior art for Apple's Magsafe
Having read through the claims of Magsafe patent #7311526, I am not sure how it differs from previous examples of magnetic power connectors. What exactly is the novelty being claimed in that ...
