Ken Onion's Patents

[acourvil]

Utility Patents:

6,145,202 Opening and closing assisting mechanism for folding knife (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=31&f=G&l=50&co1=AND&d=PTXT&s1=onion.INNM.&s2=knife&OS=IN/onion+AND+knife&RS=IN/onion+AND+knife)

6,338,431 Locking knife blade with moving locking mechanism on blade (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=28&f=G&l=50&co1=AND&d=PTXT&s1=onion.INNM.&s2=knife&OS=IN/onion+AND+knife&RS=IN/onion+AND+knife)

6,378,214 Locking knife blade with moving locking mechanism on blade (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=24&f=G&l=50&co1=AND&d=PTXT&s1=onion.INNM.&s2=knife&OS=IN/onion+AND+knife&RS=IN/onion+AND+knife)

6,397,476 Opening and closing assisting mechanism for a folding knife (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=23&f=G&l=50&co1=AND&d=PTXT&s1=onion.INNM.&s2=knife&OS=IN/onion+AND+knife&RS=IN/onion+AND+knife)

6,427,334 Folding knife with blade locking mechanism (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=22&f=G&l=50&co1=AND&d=PTXT&s1=onion.INNM.&s2=knife&OS=IN/onion+AND+knife&RS=IN/onion+AND+knife)

6,591,504 Folding knife with safety lock (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=19&f=G&l=50&co1=AND&d=PTXT&s1=onion.INNM.&s2=knife&OS=IN/onion+AND+knife&RS=IN/onion+AND+knife)

7,296,355 Adjustable blade-assisting mechanism for a folding knife (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=12&f=G&l=50&co1=AND&d=PTXT&s1=onion.INNM.&s2=knife&OS=IN/onion+AND+knife&RS=IN/onion+AND+knife)

7,340,838 Folding knife with safety lock (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=4&f=G&l=50&co1=AND&d=PTXT&s1=onion.INNM.&s2=knife&OS=IN/onion+AND+knife&RS=IN/onion+AND+knife)

7,370,421 Folding knife with removable blade (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=2&f=G&l=50&co1=AND&d=PTXT&s1=onion.INNM.&s2=knife&OS=IN/onion+AND+knife&RS=IN/onion+AND+knife)

7,395,599 Blade-assisting mechanism for a folding knife (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=%2Fnetahtml%2FPTO%2Fsearch-adv.htm&r=1&p=1&f=G&l=50&d=PTXT&S1=(onion.INNM.+AND+knife.ABTX.)&OS=IN/onion+AND+ABST/knife&RS=(IN/onion+AND+ABST/knife))

7,458,159 Folding knife having a locking mechanism (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&co1=AND&d=PTXT&s1=onion.INNM.&s2=knife&OS=IN/onion+AND+knife&RS=IN/onion+AND+knife)

7,506,446 Locking mechanism for a folding knife (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&co1=AND&d=PTXT&s1=onion.INNM.&s2=knife&OS=IN/onion+AND+knife&RS=IN/onion+AND+knife)

7,716,839 Folding knife with removable blade (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=2&f=G&l=50&co1=AND&d=PTXT&s1=onion.INNM.&OS=IN/onion&RS=IN/onion)

7,774,939 Stud-lock knife (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&co1=AND&d=PTXT&s1=onion.INNM.&OS=IN/onion&RS=IN/onion)

8,001,693 Closable knife with opening mechanism (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=3&f=G&l=50&co1=AND&d=PTXT&s1=onion.INNM.&s2=knife&OS=IN/onion+AND+knife&RS=IN/onion+AND+knife)

8,186,065 Double-pivot folding knife (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&co1=AND&d=PTXT&s1=onion.INNM.&s2=knife&OS=IN/onion+AND+knife&RS=IN/onion+AND+knife)

[list updated 9/19/12]

[acourvil]

Design Patents:

D438,085 Pocket knife (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=30&f=G&l=50&co1=AND&d=PTXT&s1=onion.INNM.&s2=knife&OS=IN/onion+AND+knife&RS=IN/onion+AND+knife)

D450,228 Pocket knife (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=29&f=G&l=50&co1=AND&d=PTXT&s1=onion.INNM.&s2=knife&OS=IN/onion+AND+knife&RS=IN/onion+AND+knife)

D454,043 Pocket knife blade (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=27&f=G&l=50&co1=AND&d=PTXT&s1=onion.INNM.&s2=knife&OS=IN/onion+AND+knife&RS=IN/onion+AND+knife)

D454,768 Pocket knife blade (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=26&f=G&l=50&co1=AND&d=PTXT&s1=onion.INNM.&s2=knife&OS=IN/onion+AND+knife&RS=IN/onion+AND+knife)

D455,062 Pocket knife (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=25&f=G&l=50&co1=AND&d=PTXT&s1=onion.INNM.&s2=knife&OS=IN/onion+AND+knife&RS=IN/onion+AND+knife)

D467,783 Surface ornamentation for a knife handle (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=21&f=G&l=50&co1=AND&d=PTXT&s1=onion.INNM.&s2=knife&OS=IN/onion+AND+knife&RS=IN/onion+AND+knife)

D474,669 Pocket knife (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=20&f=G&l=50&co1=AND&d=PTXT&s1=onion.INNM.&s2=knife&OS=IN/onion+AND+knife&RS=IN/onion+AND+knife)

D479,104 Knife (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=18&f=G&l=50&co1=AND&d=PTXT&s1=onion.INNM.&s2=knife&OS=IN/onion+AND+knife&RS=IN/onion+AND+knife)

D479,114 Handle of a knife (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=17&f=G&l=50&co1=AND&d=PTXT&s1=onion.INNM.&s2=knife&OS=IN/onion+AND+knife&RS=IN/onion+AND+knife)

D488,045 Pocket knife (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=16&f=G&l=50&co1=AND&d=PTXT&s1=onion.INNM.&s2=knife&OS=IN/onion+AND+knife&RS=IN/onion+AND+knife)

D552,429 Knife (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=15&f=G&l=50&co1=AND&d=PTXT&s1=onion.INNM.&s2=knife&OS=IN/onion+AND+knife&RS=IN/onion+AND+knife)

D553,469 Knife (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=14&f=G&l=50&co1=AND&d=PTXT&s1=onion.INNM.&s2=knife&OS=IN/onion+AND+knife&RS=IN/onion+AND+knife)

D554,948 Knife (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=13&f=G&l=50&co1=AND&d=PTXT&s1=onion.INNM.&s2=knife&OS=IN/onion+AND+knife&RS=IN/onion+AND+knife)

D558,851 Knife (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=11&f=G&l=50&co1=AND&d=PTXT&s1=onion.INNM.&s2=knife&OS=IN/onion+AND+knife&RS=IN/onion+AND+knife)

D559,046 Knife (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=10&f=G&l=50&co1=AND&d=PTXT&s1=onion.INNM.&s2=knife&OS=IN/onion+AND+knife&RS=IN/onion+AND+knife)

D559,047 Knife (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=9&f=G&l=50&co1=AND&d=PTXT&s1=onion.INNM.&s2=knife&OS=IN/onion+AND+knife&RS=IN/onion+AND+knife)

D559,631 Knife (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=8&f=G&l=50&co1=AND&d=PTXT&s1=onion.INNM.&s2=knife&OS=IN/onion+AND+knife&RS=IN/onion+AND+knife)

D560,995 Folding knife (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=7&f=G&l=50&co1=AND&d=PTXT&s1=onion.INNM.&s2=knife&OS=IN/onion+AND+knife&RS=IN/onion+AND+knife)

D560,996 Folding knife (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=6&f=G&l=50&co1=AND&d=PTXT&s1=onion.INNM.&s2=knife&OS=IN/onion+AND+knife&RS=IN/onion+AND+knife)

D560,997 Folding knife (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=5&f=G&l=50&co1=AND&d=PTXT&s1=onion.INNM.&s2=knife&OS=IN/onion+AND+knife&RS=IN/onion+AND+knife)

D565,918 Knife (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=3&f=G&l=50&co1=AND&d=PTXT&s1=onion.INNM.&s2=knife&OS=IN/onion+AND+knife&RS=IN/onion+AND+knife)

D570,180 Folding knife (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&co1=AND&d=PTXT&s1=onion.INNM.&s2=knife&OS=IN/onion+AND+knife&RS=IN/onion+AND+knife)

D576,466 Folding knife (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&co1=AND&d=PTXT&s1=onion.INNM.&s2=knife&OS=IN/onion+AND+knife&RS=IN/onion+AND+knife)

RE42,906 Folding knife with safety lock (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=2&f=G&l=50&co1=AND&d=PTXT&s1=onion.INNM.&s2=knife&OS=IN/onion+AND+knife&RS=IN/onion+AND+knife)

[list updated 9/19/12]

[ToneGrail]

So are all assisted opening knives from other companies licensed by Ken Onion?

[acourvil]

Not all assisted opening knives are the same design. Although I'm not sure, I think that Kershaw is the only company that uses the SpeedSafe mechanism that Ken invented. Maybe Ken or Jeff could comment?

[phalanx50]

I know of no assisted openener that does not fall under Ken's patents.


jake

[acourvil]

A few updates to the lists