Robert G. Challman

Person

Naperville, IL, US

People

Patents Grantslast 30 patents

Information Patent Grant
Multidirectional dusting tool
- Patent number 11,564,549
- Issue date Jan 31, 2023
- Carl Freudenberg KG
- Robert Ancheta
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Micro motion poppet valve assembly for delivery of ink with large p...
- Patent number 9,050,850
- Issue date Jun 9, 2015
- Sanford, L.P.
- Christoph Gillum
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Retractable instrument having a two stage protraction/retraction se...
- Patent number 8,568,047
- Issue date Oct 29, 2013
- Sanford, L.P.
- Robert G. Challman
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Retractable instrument having a two stage protraction/retraction se...
- Patent number 8,393,814
- Issue date Mar 12, 2013
- Sanford, L.P.
- Robert G. Challman
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Seal assembly for retractable instrument
- Patent number 7,775,734
- Issue date Aug 17, 2010
- Sanford L.P.
- David A. Dylkiewicz
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Seal assembly for retractable instrument
- Patent number 7,488,130
- Issue date Feb 10, 2009
- Sanford, L.P.
- David A. Dylkiewicz
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

Information Patent Application
CLEANING ARTICLE
- Publication number 20230104177
- Publication date Apr 6, 2023
- Carl Freudenberg KG
- Friedel Winterling
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Application
Liquid Wet Chemical Fire Extinguishing Spray
- Publication number 20140338931
- Publication date Nov 20, 2014
- BRK Brands, Inc.
- Vincent Mori
- G01 - MEASURING TESTING
Information Patent Application
MICRO MOTION POPPET VALVE ASSEMBLY FOR DELIVERY OF INK WITH LARGE P...
- Publication number 20130170887
- Publication date Jul 4, 2013
- SANFORD, L.P.
- Christoph Gillum
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Application
RETRACTABLE INSTRUMENT HAVING A TWO STAGE PROTRACTION/RETRACTION SE...
- Publication number 20120328352
- Publication date Dec 27, 2012
- SANFORD, L.P.
- ROBERT G. CHALLMAN
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Application
RETRACTABLE INSTRUMENT HAVING A TWO STAGE PROTRACTION/RETRACTION SE...
- Publication number 20100196080
- Publication date Aug 5, 2010
- SANFORD, L.P.
- ROBERT G. CHALLMAN
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Application
Seal Assembly For Retractable Instrument
- Publication number 20090142124
- Publication date Jun 4, 2009
- SANFORD L.P.
- David A. Dylkiewicz
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Application
Seal assembly for retractable instrument
- Publication number 20080187389
- Publication date Aug 7, 2008
- SANFORD, L.P.
- David A. Dylkiewicz
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Robert G. Challman

Person

Patents Grantslast 30 patents

Multidirectional dusting tool

Micro motion poppet valve assembly for delivery of ink with large p...

Retractable instrument having a two stage protraction/retraction se...

Retractable instrument having a two stage protraction/retraction se...

Seal assembly for retractable instrument

Seal assembly for retractable instrument

Patents Applicationslast 30 patents

CLEANING ARTICLE

Liquid Wet Chemical Fire Extinguishing Spray

MICRO MOTION POPPET VALVE ASSEMBLY FOR DELIVERY OF INK WITH LARGE P...

RETRACTABLE INSTRUMENT HAVING A TWO STAGE PROTRACTION/RETRACTION SE...

RETRACTABLE INSTRUMENT HAVING A TWO STAGE PROTRACTION/RETRACTION SE...

Seal Assembly For Retractable Instrument

Seal assembly for retractable instrument