| Patents for B43K 29 - Combinations of writing implements with other articles (9,852) |
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| 10/14/1980 | US4227930 Ball point pen, ink, and its eradicator system |
| 09/09/1980 | US4221490 Two ended retractable writing instrument |
| 08/19/1980 | US4217712 Conical pen |
| 08/12/1980 | US4216588 Marking pen holder |
| 07/22/1980 | USRE30346 Foldable pen |
| 07/22/1980 | US4213717 Decoloring by treating colored acid solution with base |
| 07/22/1980 | CA1081932A1 Letter opener device |
| 07/10/1980 | WO1980001369A1 Pen which also may house a stamp or some other object |
| 06/17/1980 | US4207695 Mechanical writing instrument |
| 05/06/1980 | CA1076995A1 Writing instrument with flat resilient clip |
| 03/04/1980 | US4190942 Apparatus and method for winding and inserting sheet material into a tube |
| 01/15/1980 | US4184044 Drawing pencil for use with optical scanning apparatus |
| 12/18/1979 | US4178753 Pendant comprising a sleeve in combination with a timepiece |
| 12/18/1979 | CA1068235A1 Combined pencil clip and sharpener |
| 11/27/1979 | US4176273 Light and heat writing pen for photosensitive material |
| 10/17/1979 | EP0004786A2 Pencils and pencil caps |
| 09/18/1979 | US4168521 Writing implement with self-contained illumination |
| 08/28/1979 | CA1061288A1 Writing instrument with appearing and disappearing indicia |
| 07/31/1979 | US4162754 Combination watchband and writing instrument |
| 05/29/1979 | US4156657 Amine decoloring agent to neutralize acid dye and form colorless product |
| 05/08/1979 | US4153379 Knock-out type automatic pencil |
| 02/27/1979 | US4142175 Pressure sensing device and transducer arrangement |
| 02/20/1979 | US4141073 Keyless electronic calculating pen |
| 01/30/1979 | US4137561 Magnifying hand tool with self-containing illuminating means |
| 01/30/1979 | US4136876 Variable numerical selection apparatus |
| 12/19/1978 | US4129925 Combined nail file and writing implement clip attachment |
| 12/19/1978 | CA1044808A1 Special pen and system for handwriting recognition |
| 12/05/1978 | US4128889 Pen type electronic digital calculator |
| 10/24/1978 | US4122435 Apparatus and method for producing an electrical signal responsive to handwriting characteristics |
| 09/19/1978 | USRE29765 Strain gauge transducer system |
| 09/05/1978 | US4111052 Pressure-sensitive writing stylus |
| 08/15/1978 | US4106200 Marker compass |
| 04/04/1978 | US4081907 Letter opener device |
| 03/28/1978 | US4081217 Foldable pen |
| 03/07/1978 | US4078226 Input apparatus for dynamic signature verification systems |
| 09/13/1977 | US4048478 Marking apparatus with electronic counters |
| 09/06/1977 | US4047017 Adjustable flashlight swingable bracket for a writing instrument |
| 08/02/1977 | US4039819 Combined writing instrument and slide rule |
| 07/26/1977 | US4037343 Novelty writing instrument having an appearing and disappearing personal name |
| 07/26/1977 | US4037283 Electric stippling device |
| 06/21/1977 | US4030842 Combination writing instrument and information storage apparatus |
| 06/14/1977 | US4029915 Miniaturized calculator keyboard switch assembly having universally pivoted key actuators |
| 06/07/1977 | US4028540 Flashlight marking implement |
| 04/05/1977 | US4016414 Writing device incorporating illuminating means |
| 02/22/1977 | US4009370 Counting or indicating ring device |
| 02/08/1977 | US4007364 Writing instrument with calculator |
| 10/19/1976 | US3986403 Writing instrument employing adjustable housing carrying strain gage and removable reservoir |
| 09/14/1976 | US3980114 Combined pencil clip and sharpener |
| 07/06/1976 | US3967905 Self-sharpening pencil |
| 06/15/1976 | US3963914 Combination writing implement and flashlight |
| 06/15/1976 | US3963358 Paper dispensing pen |
| 02/10/1976 | US3937939 Single-hand digital calculator |