THE MOTHER OF ALL SEARCHES

February 5, 2008

LMAO! I love the subject line on this post.

September 8, 2009

speechless

March 22, 2010

hello julia here...mcitp testsits really a good search engine.. i also use to get lot of information from it...

March 30, 2011

Thanks! It must have taken you forever to do this.

November 25, 2011

To Antoniosz and all other members: Thanks a lot for the information! I am gradually getting into the world of FPs and this is a wonderful starting point for me to know and understand many things.

March 23, 2012

amazing reference, nice job

June 29, 2012

After 6 years will more research be added? Thanks for what you have done.

April 25, 2014

Houston we have a problem. All links from the first post are not working.

June 18, 2014

good to know that so much information is available.

December 24, 2018

Based on international patent classification here is a list of links that shows most patent classes related to FPs, pencils, combos and BPs. If my calculations are correct there are more than 9984 patents issued worldwide listed there.
Some of these links lead to more than 500 patents. The web site will not list more than 500 if the result is more than that. For example class B43K5 bring back 9308 patents - of which only the first 500 are displayed. To find out how to display all of them scroll to the bottom of this message.

Please note that the web site is down everyday from 23:00 to 23:15 EST for maintainance.

B43K1 Nibs (continuously adjustable nibs B43K17/00); Writing-points (for indicating or recording apparatus G01D15/16)
B43K3 Nib holders (holders for continuously adjustable nibs B43K17/00)
B43K5 Pens with ink reservoirs in holders, e.g. fountain-pens (nibs or writing-points with ink reservoirs B43K1/01; ball-point pens B43K7/00; pens with writing-points other than nibs or balls B43K8/00; multiple-point writing implements B43K27/00)
B43K7 Ball-point pens ([N: B43M11/08B takes precedence]; multiple-point writing implements B43K27/00) [C9609]
B43K8 Pens with writing-points other than nibs or balls (brushes with reservoir for supplying substances A46B11/00)
B43K11 Filling devices (ink receptacles B43L25/00)
B43K13 Devices for removing nibs; Devices for cleaning nibs, e.g. by wiping (ink receptacles with pen-wiping means B43L25/12)
B43K15 Assembling, finishing, or repairing pens
B43K17 Continuously-adjustable nibs, e.g. for drawing-pens; Holders therefor (features common to fountain pens B43K5/00)
B43K19 Non-propelling pencils; Styles; Crayons; Chalks (batik pencils, cord-line chalkers B44D3/00; writing-core compositions for pencils, crayon compositions, chalk compositions C09D13/00)
B43K21 Propelling pencils (projecting mechanisms for writing units B43K24/00; multiple-point writing implements B43K27/00)
B43K23 Holders or connectors for writing implements; Means for protecting the writing-points [N: (B43K27/00A takes precedence)] [C9411]
B43K24 Mechanisms for selecting, projecting, retracting or locking writing units
B43K25 Attaching writing implements to wearing apparel or objects involving constructional changes of the implements (protecting means, e.g. caps B43K23/08; garment-holding devices A44B21/00; fastening articles to wearing apparel A45F5/02)
B43K27 Multiple-point writing implements, e.g. multicolour; Combinations of writing implements (B43K29/00 takes precedence; mechanisms for selecting, projecting, retracting or locking writing units B43K24/00; multiple writing devices with pantographic linkages B43L13/12)
B43K29 Combinations of writing implements with other articles
B43K31 Writing implement receptacles functioning as, or combined with, writing implements (other writing implement receptacles A45C11/34, A45C11/36)

If there are more than 500 patents in a search you can break it down by year. For example:

http://v3.espacenet.com/results?sf=a&FIRST...=&EC=&IC=+B43K5

Gives all the B43K5 patents during 1920. The following list of links leads to every patent in the B43K5 from 1920 to 2006. These searches can be easily generalized.

B43K5 patents during 1920
B43K5 patents during 1921
B43K5 patents during 1922
B43K5 patents during 1923
B43K5 patents during 1924
B43K5 patents during 1925
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B43K5 patents during 2006