Inventor · disambiguated record
Sheldon Chang
Also filed as: CHANG SHELDON · CHANG SHELDON S · CHANG SHELDON S L
55 granted patents·6 pending applications·821 citations·filing 1989–2025
99Inventor score
Top patents by PatentIndex Score
61 records- 0199US11902287B2Geo-fence authorization provisioningSNAP INC·Filed 2023·Granted Feb 13, 2024·7 cites·20 claims
- 0299US11627141B2Geo-fence authorization provisioningSNAP INC·Filed 2020·Granted Apr 11, 2023·12 cites·20 claims
- 0399US10616239B2Geo-fence authorization provisioningSNAP INC·Filed 2016·Granted Apr 7, 2020·37 cites·19 claims
- 0498US10893055B2Geo-fence authorization provisioningSNAP INC·Filed 2019·Granted Jan 12, 2021·32 cites·20 claims
- 0598US10285001B2Generation, curation, and presentation of media collectionsSNAP INC·Filed 2016·Granted May 7, 2019·21 cites·20 claims
- 0698US10133918B1Generating a mood log based on user imagesSNAP INC·Filed 2015·Granted Nov 20, 2018·29 cites·23 claims
- 0798US10061977B1Determining a mood for a groupSNAP INC·Filed 2015·Granted Aug 28, 2018·31 cites·15 claims
- 0898US9754355B2Object recognition based photo filtersSNAP INC·Filed 2015·Granted Sep 5, 2017·31 cites·20 claims
- 0997US11710323B2Determining a mood for a groupSNAP INC·Filed 2022·Granted Jul 25, 2023·3 cites·20 claims
- 1097US11688119B2Animated expressive iconSNAP INC·Filed 2022·Granted Jun 27, 2023·4 cites·17 claims
- 1197US11397517B2Customized media overlaysSNAP INC·Filed 2020·Granted Jul 26, 2022·5 cites·20 claims
- 1297US11281701B2Geolocation-based pictographsSNAP INC·Filed 2020·Granted Mar 22, 2022·5 cites·20 claims
- 1397US11120601B2Animated expressive iconSNAP INC·Filed 2020·Granted Sep 14, 2021·4 cites·20 claims
- 1497US9978125B1Generating and distributing image filtersSNAP INC·Filed 2017·Granted May 22, 2018·18 cites·20 claims
- 1596US11741136B2Geolocation-based pictographsSNAP INC·Filed 2022·Granted Aug 29, 2023·3 cites·20 claims
- 1696US10726603B1Animated expressive iconSNAP INC·Filed 2018·Granted Jul 28, 2020·15 cites·17 claims
- 1795US11880923B2Animated expressive iconSNAP INC·Filed 2023·Granted Jan 23, 2024·1 cites·20 claims
- 1895US11468618B2Animated expressive iconSNAP INC·Filed 2021·Granted Oct 11, 2022·2 cites·20 claims
- 1995US11216869B2User interface to augment an image using geolocationSNAP INC·Filed 2014·Granted Jan 4, 2022·20 cites·20 claims
- 2095US11197123B2Generation, curation, and presentation of media collectionsSNAP INC·Filed 2020·Granted Dec 7, 2021·3 cites·20 claims
- 2195US10496875B1Determining a mood for a groupSNAP INC·Filed 2018·Granted Dec 3, 2019·8 cites·20 claims
- 2295US10203855B2Customized user-controlled media overlaysSNAP INC·Filed 2016·Granted Feb 12, 2019·13 cites·20 claims
- 2395US10157449B1Geo-location-based image filtersSNAP INC·Filed 2017·Granted Dec 18, 2018·8 cites·20 claims
- 2494US12231437B2Geo-fence authorization provisioningSNAP INC·Filed 2023·Granted Feb 18, 2025·1 cites·20 claims
- 2594US10679389B2Methods and systems for generation, curation, and presentation of media collectionsSNAP INC·Filed 2016·Granted Jun 9, 2020·10 cites·20 claims
- 2693US10824654B2Geolocation-based pictographsSNAP INC·Filed 2014·Granted Nov 3, 2020·14 cites·25 claims
- 2792US11301960B2Object recognition based image filtersSNAP INC·Filed 2019·Granted Apr 12, 2022·4 cites·20 claims
- 2891US11301671B1Determining a mood for a groupSNAP INC·Filed 2019·Granted Apr 12, 2022·4 cites·20 claims
- 2991US11023514B2Methods and systems for generation, curation, and presentation of media collectionsSNAP INC·Filed 2016·Granted Jun 1, 2021·6 cites·20 claims
- 3091US10834525B2Generation, curation, and presentation of media collectionsSNAP INC·Filed 2019·Granted Nov 10, 2020·5 cites·20 claims
- 3190US11734342B2Object recognition based image overlaysSNAP INC·Filed 2022·Granted Aug 22, 2023·1 cites·20 claims
- 3290US10754525B1Customized media overlaysSNAP INC·Filed 2018·Granted Aug 25, 2020·5 cites·20 claims
- 3390US5820354ACascaded progressing cavity pump systemROBBINS & MYERS·Filed 1996·Granted Oct 13, 1998·71 cites·27 claims
- 3489US11671664B2Media collection generation and privacy mechanismsSNAP INC·Filed 2021·Granted Jun 6, 2023·1 cites·17 claims
- 3589US10380720B1Location-based image filtersSNAP INC·Filed 2018·Granted Aug 13, 2019·3 cites·18 claims
- 3688US2025329096A1Animated expressive iconSNAP INC·Filed 2025·Application pending·0 cites
- 3787US11611846B2Generation, curation, and presentation of media collectionsSNAP INC·Filed 2021·Granted Mar 21, 2023·1 cites·20 claims
- 3886US7074018B2Direct drive linear flow blood pumpCHANG SHELDON·Filed 2003·Granted Jul 11, 2006·137 cites·21 claims
- 3985US11202124B2Media collection generation and privacy mechanismsSNAP INC·Filed 2018·Granted Dec 14, 2021·2 cites·9 claims
- 4085US2025133088A1Geo-fence authorization provisioningSNAP INC·Filed 2024·Application pending·0 cites
- 4183US11860959B1Ranking notifications in a social network feedSNAP INC·Filed 2018·Granted Jan 2, 2024·3 cites·19 claims
- 4282US12243318B2Determining a mood for a groupSNAP INC·Filed 2023·Granted Mar 4, 2025·0 cites·20 claims
- 4382US12056182B2Object recognition based image overlaysSNAP INC·Filed 2023·Granted Aug 6, 2024·0 cites·18 claims
- 4482US10936858B1Generating a mood log based on user imagesSNAP INC·Filed 2018·Granted Mar 2, 2021·3 cites·19 claims
- 4582US2025348928A1User interface to augment an image using geolocationSNAP INC·Filed 2025·Application pending·0 cites
- 4681US11889381B2Generation, curation, and presentation of media collectionsSNAP INC·Filed 2022·Granted Jan 30, 2024·0 cites·20 claims
- 4781US5233623AIntegrated semiconductor laser with electronic directivity and focusing controlUNIV NEW YORK STATE RES FOUND·Filed 1992·Granted Aug 3, 1993·41 cites·16 claims
- 4880US12400389B2Animated expressive iconSNAP INC·Filed 2023·Granted Aug 26, 2025·0 cites·14 claims
- 4980US12289495B2Media collection generation and privacy mechanismsSNAP INC·Filed 2023·Granted Apr 29, 2025·0 cites·17 claims
- 5077US12099707B2Customized media overlaysSNAP INC·Filed 2022·Granted Sep 24, 2024·0 cites·20 claims
Showing the top 50 of 61 patent records by PatentIndex Score.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →