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Roger Karam — 61 Patents

Cisco: 60 patents #107 of 13,007Top 1%

Santa Clara, CA: #145 of 9,301 inventorsTop 2%

California: #5,709 of 386,348 inventorsTop 2%

Overall (All Time): #37,626 of 4,157,543Top 1%

61 Patents All Time

Roger Karam has been granted 61 US patents while listed as an inventor at Cisco. The first was granted in 1999 and the most recent in February 2025. Roger Karam ranks #37,626 of 4,157,543 US inventors in our database (top 0.91%). Patent records list Roger Karam in Santa Clara, CA, US.

Patents per Year

Issued Patents All Time

Showing 1–25 of 61 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
12227136	Control system and vehicle	Kai Schade, Yao Zhai, Holger Schanz	2025-02-18
9385929	Methods and devices for performing dynamic droop compensation	Hugh Barrass	2016-07-05	$42,620,000
9141160	Powered device classification in a wired data telecommunications network	John F. Wakerly	2015-09-22	$24,609,000
9094339	Computer system communication channel diagnostics	—	2015-07-28	$27,521,000
8972757	Powered device classification in a wired data telecommunications network	John F. Wakerly	2015-03-03	$33,738,000
8886973	System employing signaling at a powered communications interface to modify or override a power-withholding policy at a power-sourcing equipment	—	2014-11-11	$22,669,000
8635473	Powered device classification in a wired data telecommunications network	John F. Wakerly	2014-01-21	$36,957,000
8572413	Methods and apparatus providing advanced classification for power over ethernet	Chad M. Jones, Frederick R. Schindler	2013-10-29	$34,310,000
8549331	Redundant power and data in a wired data telecommunications network	Luca Cafiero	2013-10-01	$25,066,000
8411575	Multi-station physical layer communication over TP cable	—	2013-04-02	$33,081,000
8386832	Power and data redundancy in a single wiring closet	Luca Cafiero	2013-02-26	$38,218,000
8316223	Powered device classification in a wired data telecommunications network	John F. Wakerly	2012-11-20	$43,564,000
8308509	Multiple-position modular connector employing shielded or filtered signal conductors for reducing electrical noise	—	2012-11-13	$24,591,000
8305906	Detection algorithm for delivering inline power down four pairs of an Ethernet cable to a single powered device	—	2012-11-06	$33,745,000
8300666	Inline power-based common mode communications in a wired data telecommunications network	Frederick R. Schindler, Wael William Diab	2012-10-30
8259562	Wiring closet redundancy	Michael R. Smith, Jeffrey Ym Wang	2012-09-04	$16,146,000
8234086	Detection of multiple powered devices connected to an inline power delivery channel	—	2012-07-31	$39,903,000
8184525	Method and apparatus for detecting and fixing faults in an inline-power capable ethernet system	—	2012-05-22	$35,934,000
8171315	Method and apparatus for changing power class for a powered device	Robert Thomas	2012-05-01	$21,454,000
8149683	Fail-safe inline power in a wired data telecommunications network	—	2012-04-03	$28,707,000
8122266	Powered communications interface providing low-speed communications between power-sourcing equipment and powered device in non-powered operating mode	—	2012-02-21	$25,078,000
8099611	Powered communications interface with pre-operating mode using low voltages and currents for information signaling	—	2012-01-17	$46,804,000
8094808	Unpowered twisted pair loopback circuit for differential mode signaling	James Molenda, Maurilio De Nicolo, Karl Nakamura	2012-01-10	$41,432,000
8074084	Powered device classification in a wired data telecommunications network	John F. Wakerly	2011-12-06	$31,478,000
8042006	Automatic system for power and data redundancy in a wired data telecommunications network	Luca Cafiero	2011-10-18	$22,947,000