Inventor · disambiguated record
Donald C. Stiff
Also filed as: STIFF DONALD · STIFF DONALD C
20 granted patents·1,058 citations·filing 2011–2021
97Inventor score
Technology areasY10T
Top patents by PatentIndex Score
20 records- 0198USD673136SHeadphoneKELLY PETER M·Filed 2011·Granted Dec 25, 2012·239 cites·1 claims
- 0297USD683717SHeadphoneSKULLCANDY INC·Filed 2012·Granted Jun 4, 2013·91 cites·1 claims
- 0396USD701193SHeadphoneSKULLCANDY INC·Filed 2013·Granted Mar 18, 2014·80 cites·1 claims
- 0496USD674372SHeadphoneSKULLCANDY INC·Filed 2011·Granted Jan 15, 2013·82 cites·1 claims
- 0595USD685759SHeadphoneKELLY PETER M·Filed 2011·Granted Jul 9, 2013·71 cites·1 claims
- 0694USD673140SHeadphoneKELLY PETER M·Filed 2011·Granted Dec 25, 2012·60 cites·1 claims
- 0793USD701196SHeadphoneSKULLCANDY INC·Filed 2012·Granted Mar 18, 2014·56 cites·1 claims
- 0893USD685767SHeadphoneKELLY PETER M·Filed 2011·Granted Jul 9, 2013·57 cites·1 claims
- 0991USD904742SSole structureUNDER ARMOUR INC·Filed 2019·Granted Dec 15, 2020·34 cites·1 claims
- 1091USD701197SHeadphoneSKULLCANDY INC·Filed 2012·Granted Mar 18, 2014·45 cites·1 claims
- 1191USD674376SHeadphoneSKULL CANDY INC·Filed 2011·Granted Jan 15, 2013·64 cites·1 claims
- 1289USD904743SSole structureUNDER ARMOUR INC·Filed 2019·Granted Dec 15, 2020·29 cites·1 claims
- 1388USD676024SWireless communication deviceSKULLCANDY INC·Filed 2012·Granted Feb 12, 2013·39 cites·1 claims
- 1488USD676023SWireless communication deviceSKULLCANDY INC·Filed 2012·Granted Feb 12, 2013·38 cites·1 claims
- 1585USD813844SHeadphoneSKULLCANDY INC·Filed 2015·Granted Mar 27, 2018·26 cites·1 claims
- 1680USD925878SSole structureUNDER ARMOUR INC·Filed 2019·Granted Jul 27, 2021·14 cites·1 claims
- 1777US9439467B2Accessory structures for connection between straps and related methodsSTIFF DONALD C·Filed 2012·Granted Sep 13, 2016·8 cites·10 claims
- 1871USD733682SPortable speakerKELLY PETER M·Filed 2013·Granted Jul 7, 2015·16 cites·1 claims
- 1969USD947509SSole structureUNDER ARMOUR INC·Filed 2021·Granted Apr 5, 2022·3 cites·1 claims
- 2049USD757678SPortable speakerSKULLCANDY INC·Filed 2014·Granted May 31, 2016·6 cites·1 claims
Join the waitlist — get patent alerts
Get an alert when Donald C. Stiff files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →