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Robert McCallum — 19 Patents

DSDelphax Systems: 6 patents #3 of 47Top 7%
DTDelphax Technologies: 6 patents #1 of 11Top 10%
NLNcr Canada Ltd - Ncr Canada Ltee: 2 patents #4 of 46Top 9%
Xerox: 1 patents #5,237 of 8,622Top 65%
Bolton, CA: #6 of 229 inventorsTop 3%
Overall (All Time): #229,345 of 4,157,543Top 6%
19 Patents All Time
Robert McCallum has been granted 19 US patents while listed as an inventor at Delphax Systems. The first was granted in 1980 and the most recent in January 2020. Robert McCallum ranks #229,345 of 4,157,543 US inventors in our database (top 5.5%). Patent records list Robert McCallum in Bolton, ON, CA.

Issued Patents All Time

Showing 1–19 of 19 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10525745 Electrostatic charging apparatus and method for sheet transport — 2020-01-07
10343420 Media sheet transport apparatus and method Harry Young, Cornelius Vandenberg 2019-07-09
9090097 Inkjet printer with selectable simplex and duplex printing Parhar Sarbjit, Ke Li 2015-07-28
D726529 Connector for educational construction kits — 2015-04-14
D726528 Connector for educational construction kits — 2015-04-14
8851642 Ink delivery system for inkjet printheads Christopher Thomson, Bentzi Tilayof 2014-10-07
8794727 Multiple print head printing apparatus and method of operation Christopher Thomson, Jeffrey Belbeck, Theodore Bellisario 2014-08-05
8172152 Method for inkjet printing of E13B magnetic ink character recognition characters and substrate having such characters printed thereon Christopher Thomson, Victor Foyle 2012-05-08
6500367 Method of forming a seamless belt Carl J. Naus, Sotos M. Theodoulou, Roman P. Badiali, Paul D. Patcheson 2002-12-31 $7,830,000
5030975 Charge transfer imaging cartridge Robert C. Kostash, Dale E. Hendrikx 1991-07-09
5006869 Charged particle printer W. Raymond Buchan 1991-04-09
4999653 Venetian blinding — 1991-03-12
4958172 Charge transfer imaging cartridge Brian McIntosh, Hemant Gandhi 1990-09-18
4890123 Print cartridge Dale E. Hendrikx 1989-12-26
4745421 Ionic print cartridge and printer Paul E. Plasschaert, Dolf Landheer, Hemant Gandhi 1988-05-17
4679060 Ionic print cartridge and printer Paul E. Plasschaert, Dolf Landheer, Hemant Gandhi 1987-07-07
4662300 Offshore load-handling system David Mitchell 1987-05-05
4286149 Apparatus and method for detection of overlapping objects Samuel Ben-Nathan, Marwin G. Neumeister, Mikhail Shats 1981-08-25
4203675 Pressure printer Miroslav S. Osmera, Rudolf Enter 1980-05-20

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